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STORAGE · YOUR NEXT FACE-OFF

Seagate IronWolf vs Toshiba X300

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

Seagate IronWolf

8 TB · 3.5-inch · SATA · 7200 RPM · CMR · ST8000VN004

Seagate IronWolf 8 TB 3.5-inch NAS hard drive, front label view
Full product profile Official image
Exact model & source notes

Seagate's 8 TB IronWolf NAS hard drive in its 7200 RPM, air-filled CMR version (ST8000VN004), with a 256 MB cache, a rated 210 MB/s outer-track sustained transfer, a 180 TB/year workload rating and a three-year limited warranty.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications
WHAT DIFFERS
Cache256 MB512 MB
3 yearsLimited warranty time2 years
Non-operating shock rating300 G; 2 ms (max)2,450 m/s² {250 G} (2 ms)
3 of 10 verified differences, in the order listed below. Not a rating.
See the 10 verified differences
THE CONTENDER

Toshiba X300

8 TB · EMEA retail kit · HDWR780EZSTA

Toshiba X300 Performance 3.5-inch hard drive, front label view
Full product profile Official image
Exact model & source notes

The 8 TB X300 is Toshiba's performance desktop drive for gaming and workstation PCs. At this capacity it spins at 7,200 rpm with a 512 MB buffer and CMR recording, uses a dual-stage actuator, Toshiba Stable Platter and Dynamic Cache Technology and an internal shock sensor, and carries a two-year limited warranty. Toshiba does not publish a sustained transfer rate or annual workload rating for it.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

Seagate IronWolf UK & US retailers

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UK & US price history: no verified listing yet

Toshiba X300 UK & US retailers

UK
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US
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UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison
  • Manufacturer facts for the exact models shown. Not a quality rating or a test result.
  • “Different” means the known values differ, not that one is better.
  • Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.
SPECIFICATIONS SIDE BY SIDE8 topics
SELECTED TOPIC
01 / 08

Cache

Compare the exact DRAM capacity and cache configuration. Onboard DRAM is a separate specification from a write buffer; neither is a measured performance or reliability rating.

Toshiba X300512 MB

Manufacturer specification · The product page gives '512 MB / 256 MB' across the range; the 8 TB datasheet page gives 512 MB.

Source 1Source 2
Explore the full specifications

Check the connection before the capacity. M.2 NVMe modules and 2.5-inch SATA drives are not interchangeable. Check the host’s protocol, slot or bay, power connection and clearance. Rated speeds use different test systems; we do not turn them into a speed score or overall winner.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

10 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.

Cache

In Visual facts
Seagate IronWolf256 MB
Toshiba X300512 MB
Sources
Toshiba X300

Manufacturer specification · The product page gives '512 MB / 256 MB' across the range; the 8 TB datasheet page gives 512 MB.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Compare the exact DRAM capacity and cache configuration. Onboard DRAM is a separate specification from a write buffer; neither is a measured performance or reliability rating.

Rated performance and conditions

In Visual facts
Seagate IronWolfUp to 210 MB/s maximum sustained transfer rate (outer diameter); 7200 RPM; 256 MB cache
Toshiba X3007,200 rpm; 512 MB buffer; 4.17 ms average latency (Toshiba publishes no sustained transfer rate for this model)
Sources
Seagate IronWolf

Manufacturer specification · Seagate maximum sustained transfer rate at the outer diameter (OD); Seagate states actual data rates may vary depending on operating environment and other factors. Seagate's IronWolf product page copy says 'delivering sustained data rates up to 180 MB/s' without naming a model or capacity; the data sheet's ST8000VN004 column gives 210 MB/s, which is the figure recorded here. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002). Not our measurement.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

Manufacturer specification · RPM class, buffer and average latency from the 8 TB datasheet page. Neither the cited X300 datasheet nor the product page states a maximum sustained transfer rate for the X300, so no MB/s figure is recorded (value intentionally not inferred from the N300 or other models).

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Manufacturer peak claims depend on cache state, host and workload. Queue depth and test systems must match before performance can be compared; these figures do not establish a faster everyday drive.

Warranty terms and endurance if applicable

In Visual facts
Seagate IronWolf3-year limited warranty; rated workload 180 TB/year; 3 years of Rescue Data Recovery Services included
Toshiba X3002-year limited warranty
Sources
Seagate IronWolf

Manufacturer specification · Seagate states Rescue services are not available in all countries. Workload rate limit is a rating, not a warranty write cap stated by Seagate.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

Manufacturer specification · Toshiba limited-warranty terms apply; Toshiba publishes no annual workload rating for the X300.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Check the exact configuration and source conditions for your use.

Operating temperature

In Visual facts
Seagate IronWolf0 °C ambient minimum to 65 °C drive-reported maximum
Toshiba X3005–60 °C
Sources
Seagate IronWolf

Manufacturer specification · Seagate does not recommend sustained drive temperatures above 60 °C.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)

Check the exact configuration and source conditions for your use.

Power

In Visual facts
Seagate IronWolfData sheet: average operating 10.1 W, idle average 7.8 W; product manual: average idle 7.16 W, typical operating 9.16–10.02 W depending on workload; standby 1.0 W (both); startup current 1.8 A typical (12 V)
Toshiba X3009.07 W typical operating; 5.74 W typical active idle; 5 V DC +10 %/-7 % and 12 V DC ±10 % supply
Sources
Seagate IronWolf

Manufacturer specification · The two Seagate sources disagree on idle power: the data sheet (DS1904.23, ST8000VN004 column) lists 7.8 W idle average, while the ST8000VN004 product manual's Table 2 (DC power requirements, 8TB) lists 7.16 W average idle; neither figure is chosen. The data sheet gives one 10.1 W average operating figure; the manual gives only per-workload typical operating totals: 9.96 W random read 4K16Q, 9.16 W random write 4K16Q, 10.02 W sequential read 64K16Q and 9.54 W sequential write 64K16Q. Both list 1.0 W standby. The manual's typical figures are averages of drives tested under nominal conditions at 5.0 V and 12.0 V input and 25 °C ambient.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)

Check the exact configuration and source conditions for your use.

Show 4 more verified differences

Non-operating shock rating

In Visual facts
Seagate IronWolf300 G; 2 ms (max)
Toshiba X3002,450 m/s² {250 G} (2 ms)
Sources
Seagate IronWolf

Manufacturer specification · Seagate data sheet row 'Shock, Operating/Nonoperating: 2ms (max)': 70Gs/300Gs for ST8000VN004. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)

Check the exact configuration and source conditions for your use.

Operating shock rating

Seagate IronWolf70 G (read) / 40 G (write); 2 ms
Toshiba X300686 m/s² {70 G} (2 ms)
Sources
Seagate IronWolf

Manufacturer specification · Seagate's ST8000VN004 product manual rates operational shock separately: 70 Gs for reads and 40 Gs for writes at a maximum pulse duration of 2 ms. The data sheet (DS1904.23, ST8000VN004 column, row 'Shock, Operating/Nonoperating: 2ms (max)': 70Gs/300Gs) gives a single 70 Gs operating figure, which matches the read rating.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)

Check the exact configuration and source conditions for your use.

Drive dimensions

Seagate IronWolf26.11 mm high × 101.85 mm wide × 146.99 mm deep (1.028 in × 4.01 in × 5.787 in)
Toshiba X300147 (L) × 101.85 (W) × 26.1 (H) mm
Sources
Seagate IronWolf

Manufacturer specification · Seagate lists height, maximum width and maximum depth. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

Manufacturer specification · Bare drive; taken from the 8 TB datasheet page.

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

A size or weight trade-off; it does not establish the better product.

Missing or non-comparable evidence (20)

Acoustics

Seagate IronWolf28 dBA idle; 32 dBA seek (typical)
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Seagate typical values; idle measured in Idle 1 state. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Acoustics (idle)

Seagate IronWolfNot verified
Toshiba X30034 dB typical
Sources
Seagate IronWolf

No source recorded for this side.

Toshiba X300

Manufacturer specification · 8 TB datasheet page, idle mode. The product page says the helium-sealed 12 TB to 20 TB X300 models 'minimize acoustic output to just 20db (typical) in idle mode'; that figure does not apply to this 8 TB model.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Cache technology

Seagate IronWolfNot verified
Toshiba X300Toshiba Dynamic Cache Technology
Sources
Seagate IronWolf

No source recorded for this side.

Toshiba X300

Manufacturer specification · Listed as a Top Feature; Toshiba publishes no further detail. Buffer size is recorded separately.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Max sustained transfer rate (OD)

Seagate IronWolf210 MB/s
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Outer-diameter maximum, not an average. Seagate's IronWolf product page copy says 'delivering sustained data rates up to 180 MB/s' without naming a model or capacity; the data sheet's ST8000VN004 column gives 210 MB/s, which is the figure recorded here. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Advertised mechanical design

Seagate IronWolfNot verified
Toshiba X300Dual-stage actuator; Toshiba Stable Platter Technology
Sources
Seagate IronWolf

No source recorded for this side.

Toshiba X300

Manufacturer specification · Toshiba: the dual-stage actuator improves positional accuracy against vibration-induced head-track misalignment; Stable Platter Technology stabilises the motor shaft at both ends to minimise vibration. No measured benefit is published.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Evidence is missing or conflicting on at least one side. This is not a verified difference.

MTBF

Seagate IronWolf1,000,000 hours
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Seagate-rated mean time between failures (data sheet row 'Mean Time Between Failures (MTBF, hours)'). The product manual states an annualized failure rate of 0.87% (MTBF of 1,000,000 hours) over a 5-year service life in Enterprise Storage field conditions limited to 8760 power-on hours per year, a drive-reported HDA temperature of 40 °C or less, an ambient wet bulb of 26 °C or less and a typical workload, and calls the AFR (MTBF) a population statistic not relevant to individual units.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Manufacturer MTTF rating

Seagate IronWolfNot verified
Toshiba X300600000 hours
Sources
Seagate IronWolf

No source recorded for this side.

Toshiba X300

Manufacturer specification · Exact 8 TB HDWR780EZSTA/HDWR780UZSVA technical page: MTTF (hours). Manufacturer statistical rating, not an individual drive lifespan, guarantee or MTBF claim.

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Evidence is missing or conflicting on at least one side. This is not a verified difference.

NAS features

Seagate IronWolfRated for 1–8 drive bays; rotational vibration (RV) sensor; dual-plane balance; error recovery control; IronWolf Health Management
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Seagate says IronWolf Health Management needs a supported NAS system; check with the NAS vendor. Seagate's product page says IronWolf drives are tested for compatibility with NAS brands such as Asustor and QNAP and recommends consulting the NAS vendor's compatibility list for approved drives.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Internal shock sensor

Seagate IronWolfNot verified
Toshiba X300Yes
Sources
Seagate IronWolf

No source recorded for this side.

Toshiba X300

Manufacturer specification · 8 TB datasheet page 'Shock Sensor yes'. The product page also describes ramp loading technology, which keeps the slider off the disk during transport.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Allowable supply voltage

Seagate IronWolf5 V ±5%; 12 V ±10% (tolerance including noise)
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Seagate data sheet row 'Voltage Tolerance, Inc. Noise (5V/12V)': ±5% / ±10% for ST8000VN004. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Unrecoverable error rate

Seagate IronWolfNot verified
Toshiba X300Conflicting evidence
Sources
Seagate IronWolf

No source recorded for this side.

Toshiba X300

The 8 TB datasheet page states '1 per 10^15'; the product page's range-wide specification table states '1 per 10¹⁴ bits read'. Both are official; the conflict is kept explicit. · Manufacturer specification

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Workload rate limit

Seagate IronWolf180 TB/year
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Seagate workload rate limit (WRL); drives are specified for 8,760 power-on hours per year (24×7).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Manufacturer application scope

Seagate IronWolfConsumer and commercial NAS; desktops and workstations; multimedia servers
Toshiba X300Not verified
Sources
Seagate IronWolf

Manufacturer specification · Seagate data sheet 'Best-Fit Applications'; the data sheet describes IronWolf as purpose-built for connected-home, SOHO and small-to-medium business NAS environments.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Weight

Seagate IronWolfConflicting evidence
Toshiba X300755 g
Sources
Seagate IronWolf

Seagate's data sheet (DS1904.23, ST8000VN004 column) and the product page's key specifications list a typical weight of 720 g (1.59 lb), while Seagate's ST8000VN004 product manual (Rev. F) lists a maximum weight of 716 g (1.579 lb). A typical weight above the stated maximum cannot both be right, so no single weight is recorded. · Manufacturer specification

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

5 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Seagate IronWolf

What it brings

  • CMR recording, a rotational-vibration sensor and error recovery control are specified for 1–8 bay NAS use, with IronWolf Health Management on supported NAS systems.
    Manufacturer source
  • Rated for 24×7 operation (8,760 power-on hours a year) with a 180 TB/year workload limit and 1 million hours MTBF.
    Manufacturer source
  • Three years of Rescue Data Recovery Services are included alongside the three-year limited warranty, where the service is offered.
    Manufacturer source

What to check

  • Seagate rates only an outer-diameter sequential maximum (210 MB/s) for this 7,200 RPM hard drive; its product manual adds a 4.16 ms average latency but gives no seek-time or random-access performance figures.
    Manufacturer source Manufacturer source
  • Seagate's data sheet rates it at 10.1 W average operating and 7.8 W idle power and 28–32 dBA acoustics, versus 5.3 W / 4.0 W and 25–26 dBA for the 5400 RPM ST8000VN002; the ST8000VN004 product manual lists a lower 7.16 W average idle.
    Manufacturer source Manufacturer source
  • The warranty is three years and the workload rating 180 TB/year, versus the five-year limited warranty and 550 TB/year workload rating Seagate states for its IronWolf Pro drives.
    Manufacturer source Manufacturer source

Toshiba X300

What it brings

  • 7,200 rpm with a 512 MB buffer and CMR recording on the 8 TB model, per Toshiba's own per-capacity datasheet.
    Manufacturer source
  • The EMEA retail kit (HDWR780EZSTA) and bulk drive (HDWR780UZSVA) are both listed officially, so the exact 8 TB SKU can be confirmed.
    Manufacturer source Manufacturer source

What to check

COMPARE THE DETAILS

Full specifications

How we verify
35 of 35 specifications Sources in each row
Source-backed specifications for Seagate IronWolf and Toshiba X300
SpecificationSeagate IronWolfToshiba X300
Capacity
Sources
Seagate IronWolf

Manufacturer specification · 8 TB decimal capacity (Seagate: one terabyte equals one trillion bytes). Some capacity is used for formatting and other functions.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
8000 GB8000 GB
SSD / HDD
Sources
Seagate IronWolf

Manufacturer specification · 3.5-inch hard disk drive with conventional magnetic recording (CMR), air-filled design per Seagate.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
HDDHDD
Interface and version
Sources
SATA 6 Gb/sSATA 6 Gb/s
Form factor
Sources
3.5-inch3.5-inch
Drive dimensionsDifferent
Sources
Seagate IronWolf

Manufacturer specification · Seagate lists height, maximum width and maximum depth. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

Manufacturer specification · Bare drive; taken from the 8 TB datasheet page.

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
26.11 mm high × 101.85 mm wide × 146.99 mm deep (1.028 in × 4.01 in × 5.787 in)147 (L) × 101.85 (W) × 26.1 (H) mm
Weight
Sources
Seagate IronWolf

Seagate's data sheet (DS1904.23, ST8000VN004 column) and the product page's key specifications list a typical weight of 720 g (1.59 lb), while Seagate's ST8000VN004 product manual (Rev. F) lists a maximum weight of 716 g (1.579 lb). A typical weight above the stated maximum cannot both be right, so no single weight is recorded. · Manufacturer specification

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
Conflicting sources755 g
Rated performance and conditionsDifferent
Sources
Seagate IronWolf

Manufacturer specification · Seagate maximum sustained transfer rate at the outer diameter (OD); Seagate states actual data rates may vary depending on operating environment and other factors. Seagate's IronWolf product page copy says 'delivering sustained data rates up to 180 MB/s' without naming a model or capacity; the data sheet's ST8000VN004 column gives 210 MB/s, which is the figure recorded here. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002). Not our measurement.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

Manufacturer specification · RPM class, buffer and average latency from the 8 TB datasheet page. Neither the cited X300 datasheet nor the product page states a maximum sustained transfer rate for the X300, so no MB/s figure is recorded (value intentionally not inferred from the N300 or other models).

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Up to 210 MB/s maximum sustained transfer rate (outer diameter); 7200 RPM; 256 MB cache7,200 rpm; 512 MB buffer; 4.17 ms average latency (Toshiba publishes no sustained transfer rate for this model)
CacheDifferent
Sources
Toshiba X300

Manufacturer specification · The product page gives '512 MB / 256 MB' across the range; the 8 TB datasheet page gives 512 MB.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
256 MB512 MB
Cache technology
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

Manufacturer specification · Listed as a Top Feature; Toshiba publishes no further detail. Buffer size is recorded separately.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not providedToshiba Dynamic Cache Technology
Warranty terms and endurance if applicableDifferent
Sources
Seagate IronWolf

Manufacturer specification · Seagate states Rescue services are not available in all countries. Workload rate limit is a rating, not a warranty write cap stated by Seagate.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

Manufacturer specification · Toshiba limited-warranty terms apply; Toshiba publishes no annual workload rating for the X300.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
3-year limited warranty; rated workload 180 TB/year; 3 years of Rescue Data Recovery Services included2-year limited warranty
Limited warranty timeDifferent
Sources
3 years2 years
MTBF
Sources
Seagate IronWolf

Manufacturer specification · Seagate-rated mean time between failures (data sheet row 'Mean Time Between Failures (MTBF, hours)'). The product manual states an annualized failure rate of 0.87% (MTBF of 1,000,000 hours) over a 5-year service life in Enterprise Storage field conditions limited to 8760 power-on hours per year, a drive-reported HDA temperature of 40 °C or less, an ambient wet bulb of 26 °C or less and a typical workload, and calls the AFR (MTBF) a population statistic not relevant to individual units.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
Toshiba X300

No source recorded.

1,000,000 hoursNot provided
Manufacturer application scope
Sources
Seagate IronWolf

Manufacturer specification · Seagate data sheet 'Best-Fit Applications'; the data sheet describes IronWolf as purpose-built for connected-home, SOHO and small-to-medium business NAS environments.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded.

Consumer and commercial NAS; desktops and workstations; multimedia serversNot provided
Manufacturer MTTF rating
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

Manufacturer specification · Exact 8 TB HDWR780EZSTA/HDWR780UZSVA technical page: MTTF (hours). Manufacturer statistical rating, not an individual drive lifespan, guarantee or MTBF claim.

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not provided600000 hours
PowerDifferent
Sources
Seagate IronWolf

Manufacturer specification · The two Seagate sources disagree on idle power: the data sheet (DS1904.23, ST8000VN004 column) lists 7.8 W idle average, while the ST8000VN004 product manual's Table 2 (DC power requirements, 8TB) lists 7.16 W average idle; neither figure is chosen. The data sheet gives one 10.1 W average operating figure; the manual gives only per-workload typical operating totals: 9.96 W random read 4K16Q, 9.16 W random write 4K16Q, 10.02 W sequential read 64K16Q and 9.54 W sequential write 64K16Q. Both list 1.0 W standby. The manual's typical figures are averages of drives tested under nominal conditions at 5.0 V and 12.0 V input and 25 °C ambient.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
Data sheet: average operating 10.1 W, idle average 7.8 W; product manual: average idle 7.16 W, typical operating 9.16–10.02 W depending on workload; standby 1.0 W (both); startup current 1.8 A typical (12 V)9.07 W typical operating; 5.74 W typical active idle; 5 V DC +10 %/-7 % and 12 V DC ±10 % supply
Allowable supply voltage
Sources
Seagate IronWolf

Manufacturer specification · Seagate data sheet row 'Voltage Tolerance, Inc. Noise (5V/12V)': ±5% / ±10% for ST8000VN004. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded.

5 V ±5%; 12 V ±10% (tolerance including noise)Not provided
Operating temperatureDifferent
Sources
Seagate IronWolf

Manufacturer specification · Seagate does not recommend sustained drive temperatures above 60 °C.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
0 °C ambient minimum to 65 °C drive-reported maximum5–60 °C
Non-operating temperatureDifferent
Sources
-40 °C to 70 °C (ambient)-40–70 °C
Operating shock ratingDifferent
Sources
Seagate IronWolf

Manufacturer specification · Seagate's ST8000VN004 product manual rates operational shock separately: 70 Gs for reads and 40 Gs for writes at a maximum pulse duration of 2 ms. The data sheet (DS1904.23, ST8000VN004 column, row 'Shock, Operating/Nonoperating: 2ms (max)': 70Gs/300Gs) gives a single 70 Gs operating figure, which matches the read rating.

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
70 G (read) / 40 G (write); 2 ms686 m/s² {70 G} (2 ms)
Non-operating shock ratingDifferent
Sources
Seagate IronWolf

Manufacturer specification · Seagate data sheet row 'Shock, Operating/Nonoperating: 2ms (max)': 70Gs/300Gs for ST8000VN004. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
300 G; 2 ms (max)2,450 m/s² {250 G} (2 ms)
Internal shock sensor
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

Manufacturer specification · 8 TB datasheet page 'Shock Sensor yes'. The product page also describes ramp loading technology, which keeps the slider off the disk during transport.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not providedYes
Hot-plug capable
Sources
Seagate IronWolf

Manufacturer specification · Product manual: supports hot-plug operation per the Serial ATA Revision 3.3 specification.

Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
Toshiba X300

No source recorded.

YesNot provided
Max sustained transfer rate (OD)
Sources
Seagate IronWolf

Manufacturer specification · Outer-diameter maximum, not an average. Seagate's IronWolf product page copy says 'delivering sustained data rates up to 180 MB/s' without naming a model or capacity; the data sheet's ST8000VN004 column gives 210 MB/s, which is the figure recorded here. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded.

210 MB/sNot provided
Spindle speed
Sources
Seagate IronWolf

Manufacturer specification · The other 8 TB IronWolf part, ST8000VN002, is a 5400 RPM drive; this record is ST8000VN004. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
7200 RPM7200 RPM
Recording technology
Sources
CMR (conventional magnetic recording)CMR
Sector size
Sources
Seagate IronWolf

Manufacturer specification · Product manual: 512 bytes per logical sector and 4096 bytes per physical sector.

Seagate IronWolf SATA Product Manual for ST8000VN004 (publication 100844482, Rev. F, March 2021)
Toshiba X300

No source recorded.

512E (512-byte emulation)Not provided
Workload rate limit
Sources
Seagate IronWolf

Manufacturer specification · Seagate workload rate limit (WRL); drives are specified for 8,760 power-on hours per year (24×7).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded.

180 TB/yearNot provided
Load/unload cycles
Sources
600,000600000
Nonrecoverable read errors (max)
Sources
Toshiba X300

No source recorded.

1 per 10E15 bits readNot provided
NAS features
Sources
Seagate IronWolf

Manufacturer specification · Seagate says IronWolf Health Management needs a supported NAS system; check with the NAS vendor. Seagate's product page says IronWolf drives are tested for compatibility with NAS brands such as Asustor and QNAP and recommends consulting the NAS vendor's compatibility list for approved drives.

Seagate IronWolf NAS Hard Drive (ST8000VN004 8TB configuration) — official US product pageSeagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded.

Rated for 1–8 drive bays; rotational vibration (RV) sensor; dual-plane balance; error recovery control; IronWolf Health ManagementNot provided
Acoustics
Sources
Seagate IronWolf

Manufacturer specification · Seagate typical values; idle measured in Idle 1 state. Seagate data sheet DS1904.23 first table; ST8000VN004 is the fourth model column (16TB ST16000VN001, 12TB ST12000VN0008, 10TB ST10000VN000, 8TB ST8000VN004, 8TB ST8000VN002).

Seagate IronWolf 3.5 HDD data sheet DS1904.23-2509US (per-model specification table)
Toshiba X300

No source recorded.

28 dBA idle; 32 dBA seek (typical)Not provided
Advertised mechanical design
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

Manufacturer specification · Toshiba: the dual-stage actuator improves positional accuracy against vibration-induced head-track misalignment; Stable Platter Technology stabilises the motor shaft at both ends to minimise vibration. No measured benefit is published.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not providedDual-stage actuator; Toshiba Stable Platter Technology
Native command queuing (NCQ)
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

Manufacturer specification · 8 TB datasheet page: 'supported'.

Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not providedYes
Acoustics (idle)
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

Manufacturer specification · 8 TB datasheet page, idle mode. The product page says the helium-sealed 12 TB to 20 TB X300 models 'minimize acoustic output to just 20db (typical) in idle mode'; that figure does not apply to this 8 TB model.

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not provided34 dB typical
Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.
Specifications without verified values for either product
Unrecoverable error rate
Sources
Seagate IronWolf

No source recorded.

Toshiba X300

The 8 TB datasheet page states '1 per 10^15'; the product page's range-wide specification table states '1 per 10¹⁴ bits read'. Both are official; the conflict is kept explicit. · Manufacturer specification

Toshiba X300 Performance Hard Drive — official product page, part-number range and FAQ (EMEA)Toshiba X300 Performance Hard Drive datasheet (EN, 06/2025) — per-capacity pages including 8 TB
Not providedConflicting sources
First product manufacturer sourceSecond product manufacturer source
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