Samsung 860 EVO1 TB · 2.5-inch SATA · MZ-76E1T0BW- Rated sequential read
- 550 MB/sThis one: 560 MB/s
- Rated sequential write
- 520 MB/sThis one: 530 MB/s
STORAGE
Samsung 870 EVO
1 TB · 2.5-inch SATA · Samsung part MZ-77E1T0B/EU
- Capacity
- 1000 GB
- SSD / HDD
- SSD
- Form factor
- 2.5-inch
A 1 TB 2.5-inch SATA SSD rated up to 560 MB/s read and 530 MB/s write, with TLC V-NAND, 1 GB LPDDR4 cache and a 600 TB write rating.
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THE ACTUAL PRODUCT
Compare with Samsung 860 EVO
Specifications checked 11 Sept 2026Manufacturer specifications, not a hands-on test.
The nearest checked drives by key specifications, with what differs from the Samsung 870 EVO. The first matches the Compare button above.
Samsung 860 EVO1 TB · 2.5-inch SATA · MZ-76E1T0BW
Kingston KC6001024 GB · 2.5-inch SATA · SKC600/1024G- Capacity
- 1024 GBThis one: 1000 GB
- Rated sequential read
- 550 MB/sThis one: 560 MB/s
MSI SPATIUM S270960 GB · 2.5-inch SATA- Capacity
- 960 GBThis one: 1000 GB
- Rated sequential read
- 500 MB/sThis one: 560 MB/s
Key strengths
Rated up to 560 MB/s sequential read and 530 MB/s sequential write, and Samsung rates writes at 530 MB/s even after the TurboWrite cache fills.
Before you buy
Its SATA 6 Gb/s interface keeps rated speeds to 560 MB/s read. It needs a 2.5-inch bay with SATA data and power connections, and no cables or mounting kit are included.
Every specification. With its source.
Full specifications
Exact configuration: 1 TB · 2.5-inch SATA · MZ-77E1T0B/EU
44 specifications in 7 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
Capacity & format
11 items
- Capacity
- 1000 GB
Decimal capacity; usable formatted space is lower.
- SSD / HDD
- SSD
- Form factor
- 2.5-inch
- Interface and version
- SATA 6 Gb/s
Backward compatible with SATA 3 Gb/s and 1.5 Gb/s.
- DRAM cache present
- Yes
Capacity column lists onboard LPDDR4.
Source - Enclosure dimensions
- 100 × 69.85 × 6.8 mm
- NAND type
- Samsung V-NAND TLC
Current Rev2.0 gives TLC. The product page calls it three-bit MLC, which is TLC.
Source - Cache arrangement
- 1 GB LPDDR4 DRAM
1 TB cache column, not the variable TurboWrite buffer.
Source - Controller
- Samsung MKX
Named MKX on Samsung's UK 1 TB page; the current Rev2.0 PDF describes it only as a Samsung in-house controller. · UK 1 TB page names MKX; current Rev2.0 PDF says in-house controller. Samsung does not guarantee the same revision across all production.
- DRAM cache capacity
- 1 GB
Capacity LPDDR4 DRAM, separate from TurboWrite.
Source - Approximate drive weight
- 45 g
UK model approximate weight, not a maximum or package weight.
Source
Performance
11 items
- Rated sequential read
- 560 MB/s
Samsung Rev2.0 sequential claims use CrystalDiskMark 8.0.4 on an Intel Core i7-4790K, 16 GB DDR3, ASUS Z97 PRO and Windows 10 Pro system. Writes use Intelligent TurboWrite; the 1 TB after-cache claim is also 530 MB/s. Results vary with workload, firmware and system.
Source - Rated sequential write
- 530 MB/s
Samsung Rev2.0 sequential claims use CrystalDiskMark 8.0.4 on an Intel Core i7-4790K, 16 GB DDR3, ASUS Z97 PRO and Windows 10 Pro system. Writes use Intelligent TurboWrite; the 1 TB after-cache claim is also 530 MB/s. Results vary with workload, firmware and system.
Source - Rated performance and conditions
- Up to 560 MB/s sequential read; up to 530 MB/s cached sequential write; 530 MB/s after TurboWrite
Samsung Rev2.0 sequential claims use CrystalDiskMark 8.0.4 on an Intel Core i7-4790K, 16 GB DDR3, ASUS Z97 PRO and Windows 10 Pro system. Writes use Intelligent TurboWrite; the 1 TB after-cache claim is also 530 MB/s. Results vary with workload, firmware and system.
- Rated write after TurboWrite
- 530 MB/s
Current Rev2.0 gives 530 MB/s after TurboWrite for 1 TB; 250/500 GB are 300. Revision history changed the older 500 claim to 530. Not a guarantee for every system.
Source - Rated random read
- 98000 IOPS
Manufacturer 4 KB QD32 claim using IOmeter 1.1.0, Core i7-4790K / ASUS Z97 PRO / 16 GB DDR3 / Windows 10 Pro. Distinct from sequential CrystalDiskMark; not an independent test.
Source - Rated random write
- 88000 IOPS
Manufacturer 4 KB QD32 claim using IOmeter 1.1.0, Core i7-4790K / ASUS Z97 PRO / 16 GB DDR3 / Windows 10 Pro. Distinct from sequential CrystalDiskMark; not an independent test.
Source - Rated random read, QD1
- 13000 IOPS
4 KB QD1 manufacturer claim using the stated IOmeter host, not observed application latency; TurboWrite conditions apply.
Source - Rated random write, QD1
- 36000 IOPS
4 KB QD1 manufacturer claim using the stated IOmeter host with TurboWrite active.
Source - Write-buffer technology
- Intelligent TurboWrite
Variable caching feature. Samsung does not give the buffer size or a sustained write speed.
- Rated steady-state random 4K read
- Not listed by the manufacturer
The reviewed complete Rev2.0 specification and exact UK product table give up-to 4 KB QD32 IOmeter figures but do not establish a steady-state read rating. The supported generic 98000 IOPS claim is retained separately. Missing steady-state scope does not mean poorer or absent performance.
Source - Rated steady-state random 4K write
- Not listed by the manufacturer
The reviewed complete Rev2.0 specification and exact UK product table give up-to 4 KB QD32 IOmeter figures but do not establish a steady-state write rating. The supported generic 88000 IOPS claim is retained separately. Missing steady-state scope does not mean poorer or absent performance.
Source
Endurance & warranty
5 items
- Warranty write threshold
- 600 TB
Terabytes written within the limited-warranty conditions. This is not predicted drive lifespan.
- Limited warranty time
- 5 years
Coverage ends at the time limit or write threshold, whichever occurs first; full Samsung terms and eligibility apply.
- Warranty terms and endurance if applicable
- 5 years or 600 TB written, whichever comes first; limited-warranty terms apply
- Manufacturer application scope
- Client PCs
Check the host's drive bay, SATA data/power connections and clearance.
Source - Manufacturer MTBF rating
- 1,500,000 hours
Statistical claim, not individual life or warranty.
Source
Power
5 items
- Published power conditions
- 2.0 W active read; 2.5 W active write; 30 mW idle; 3 mW device sleep
1 TB Rev2.0 column, IOmeter 1.1.0, Ryzen 9 7000-series / ASUS ProArt X670E / 32 GB DDR5 / Windows 11 Pro. CPU model is not further specified. Different from sequential/random host; idle requires DIPM; not a constant load.
Source - Published burst power
- 4 W
UK page maximum burst claim, distinct from average, idle or constant load.
Source - Allowable supply voltage
- 5 V ±5%
SATA power requirement, not the 3.3 V NVMe requirement.
Source - Device sleep support
- Yes
The UK page lists device sleep as supported. Host and operating-system support are required; Samsung gives no battery-life figure.
Source - Published system-level power
- 2.5 W average; 4.0 W maximum in burst mode
The UK page labels these as system-level average and burst figures and says hardware/configuration affect them. These differ in scope from the datasheet active-read/write states and are not a constant everyday load.
Source
Features & software
6 items
- Hardware encryption support
- AES-256; TCG Opal 2.0; IEEE 1667
Capabilities, not encryption enabled by default or all-host compatibility.
Source - TRIM support
- Yes
OS-support prerequisite.
Source - S.M.A.R.T. support
- Yes
Monitoring capability, not remaining-life guarantee.
Source - Garbage collection
- Yes
Internal feature, not measured application improvement.
Source - Drive management software
- Samsung Magician
Manufacturer lists migration, health and updates. Check the current Magician version and its requirements.
Source - World Wide Name support
- Yes
Samsung's UK page lists WWN as supported.
Source
Environment & reliability
5 items
- Operating temperature
- 0–70 °C
Manufacturer operating range, not a cooling benchmark.
Source - Storage temperature
- −40–85 °C
Non-operating PDF range.
Source - Non-condensing humidity range
- 5–95%
Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating.
Source - Non-operating shock rating
- 1500 G; 0.5 ms; three axes
Not a system drop test.
Source - Non-operating vibration rating
- 20 G; 20–2000 Hz
Published test envelope.
Source
Compatibility & box
1 item
- Installation kit included
- No
Page says unavailable; data/power cables and mounting accessories cannot be assumed.
Source
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