250 GB · 2.5-inch SATA · MZ-75E250BW
A 250 GB 2.5-inch SATA SSD rated up to 540 MB/s read and 520 MB/s write, with TLC V-NAND, 512 MB LPDDR3 cache and a 75 TB write rating.
Specifications checked 11 Sept 2026.
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Manufacturer specifications1 TB · 2.5-inch SATA · MZ-76E1T0BW
A 1 TB 2.5-inch SATA SSD rated up to 550 MB/s read and 520 MB/s write, with TLC V-NAND, 1 GB LPDDR4 cache and a 600 TB write rating.
Specifications checked 11 Sept 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
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Differences first. Select a topic for its graphic, sources and conditions.
Decimal storage capacity: 1 TB = 1,000 GB. Formatting and system use reduce available space.
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.
16 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Manufacturer specification · Decimal capacity; formatting and system use reduce available space.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · Decimal capacity; formatting and system use reduce available space.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer's stated DRAM cache capacity for this storage capacity.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · Manufacturer's stated DRAM cache capacity for this storage capacity.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetCompare 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.
Manufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limitManufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limitCheck the exact configuration and source conditions for your use.
Manufacturer specification · The 250 GB model uses MGX; the 2 TB and 4 TB models use MHX.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · 1 TB MJX identified; no stepping or clock assumed.
Samsung 860 EVO — capacity-specific datasheetCompare the exact component configuration. A controller or NAND name is not a measured performance or reliability rating.
Manufacturer specification · SLC-style write-buffer feature named by manufacturer; capacity-specific post-buffer performance is shown separately. Samsung does not give the buffer size or a sustained write guarantee.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · Variable write region, separate from onboard DRAM; Samsung's Australian footnote gives 42 GB for the 1 TB model.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetCompare the exact capacity and cache state. After-buffer claims differ from cached peaks; workload, free space, host and test method affect results. A write buffer is not onboard DRAM or a guarantee of sustained application speed.
Manufacturer specification · Samsung CrystalDiskMark 3.0.1 sequential claims: Core i7-4790K, 8 GB DDR3-1600, Intel Z97PRO, Windows 7 Ultimate SP1, Intel RST 13.0.3.1001. Writes use TurboWrite; peak rates depend on firmware, host, workload and cache state.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · Samsung CrystalDiskMark 5.0.2 sequential claims: Core i5-3550, 4 GB DDR3-1333, ASUS P8H77-V, Windows 7 Ultimate 64-bit. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetManufacturer 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.
Manufacturer specification · Samsung CrystalDiskMark 3.0.1 sequential claims: Core i7-4790K, 8 GB DDR3-1600, Intel Z97PRO, Windows 7 Ultimate SP1, Intel RST 13.0.3.1001. Writes use TurboWrite; peak rates depend on firmware, host, workload and cache state.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · Samsung CrystalDiskMark 5.0.2 sequential claims: Core i5-3550, 4 GB DDR3-1333, ASUS P8H77-V, Windows 7 Ultimate 64-bit. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state.
Samsung 860 EVO — capacity-specific datasheetManufacturer 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.
Manufacturer specification · 250 GB after-buffer manufacturer claim is 300 MB/s under CDM3/i7-4790K/Z97PRO/8 GB/Windows 7 SP1 conditions. Peak 520 is cached.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · 1 TB post-cache claim is 500 MB/s under CDM5/i5-3550/P8H77-V/4 GB/Windows 7 conditions; the 250/500 GB models are rated 300 MB/s.
Samsung 860 EVO — capacity-specific datasheetCompare the exact capacity and cache state. After-buffer claims differ from cached peaks; workload, free space, host and test method affect results. A write buffer is not onboard DRAM or a guarantee of sustained application speed.
Manufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i7-4790K / 8 GB DDR3-1600 / Z97PRO / Windows 7 Ultimate SP1 / Intel RST 13.0.3.1001; TurboWrite and firmware/host limitations apply.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i5-3550 / 4 GB DDR3-1333 / ASUS P8H77-V / Windows 7 Ultimate 64-bit. TurboWrite and firmware/host limitations apply.
Samsung 860 EVO — capacity-specific datasheetManufacturer 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.
Manufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i7-4790K / 8 GB DDR3-1600 / Z97PRO / Windows 7 Ultimate SP1 / Intel RST 13.0.3.1001; TurboWrite and firmware/host limitations apply.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i5-3550 / 4 GB DDR3-1333 / ASUS P8H77-V / Windows 7 Ultimate 64-bit. TurboWrite and firmware/host limitations apply.
Samsung 860 EVO — capacity-specific datasheetManufacturer 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.
Manufacturer specification · Capacity 4 KB QD1 manufacturer claim under the stated IOmeter/TurboWrite conditions.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · Capacity 4 KB QD1 manufacturer claim under the stated IOmeter/TurboWrite conditions.
Samsung 860 EVO — capacity-specific datasheetManufacturer 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.
Manufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limitManufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limitCheck the exact configuration and source conditions for your use.
Manufacturer specification · Regional product page maximum burst claim; not average or a constant operating load.
Samsung 850 EVO — manufacturer specificationsManufacturer specification · Regional product page maximum burst claim; not average or a constant operating load.
Samsung 860 EVO — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Ukrainian 250 GB page supplies average/burst/idle; PDF supplies 250 GB sleep. The PDF's 3.1/3.6 W active and 70 mW idle figures apply to the 4 TB model. Page does not publish its active test host. Not constant household consumption.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · 1 TB PDF figures measured with IOmeter 1.1.0, i7-7700K / 16 GB DDR4 / Gigabyte GA-Z270X / Windows 10 PRO K 64. Different host from speed testing. Idle requires DIPM; not a constant load.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer non-operating envelope.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · Manufacturer non-operating envelope.
Samsung 860 EVO — capacity-specific datasheetCheck the exact configuration and source conditions for your use.
Manufacturer specification · The 250 GB Ukrainian page states maximum 41.0 g. The family PDF lists a 55 g maximum across capacities.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · 1 TB Australian page specifies maximum 51.0 g, not average weight.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetA size or weight trade-off; it does not establish the better product.
Manufacturer specification · 512 MB LPDDR3 on the 250 GB model.
Samsung 850 EVO — capacity-specific datasheetManufacturer specification · 1 GB LPDDR4 in 1 TB column.
Samsung 860 EVO — capacity-specific datasheetThe recorded units or formats differ. These values are not ranked.
Samsung does not state this for this model. · Manufacturer specification · Samsung does not list the TurboWrite buffer size for the 250 GB model.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetManufacturer specification · AU capacity footnote gives 42 GB for 1 TB; dynamically allocated availability depends on workload and free space, not a permanent DRAM allocation.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Samsung describes a refined ECC algorithm. Samsung does not state its correction strength.
Samsung 860 EVO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Rev3.1 security feature page mentions PSID crypto erase. Requires the appropriate procedure; not equivalent to encryption already being active.
Samsung 850 EVO — capacity-specific datasheetSamsung does not state this for this model. · Manufacturer specification · Samsung's 860 EVO sources do not describe a PSID revert procedure.
Samsung 860 EVO — capacity-specific datasheetEvidence is missing or conflicting on at least one side. This is not a verified difference.
Samsung does not state this for this model. · Manufacturer specification · Basic TRIM depends on operating-system support; Samsung does not state queued TRIM for this version.
Samsung 850 EVO — manufacturer specificationsManufacturer specification · Manufacturer specifically advertises improved queued TRIM and Linux compatibility. This is not certification for every Linux kernel, controller or firmware.
Samsung 860 EVO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Ukrainian page advertises RAPID using free system memory. This is separate from onboard DRAM and raw SSD rates; Samsung's historical PCMark7 uplift is not a like-for-like drive benchmark. Check current software and operating-system requirements.
Samsung 850 EVO — manufacturer specificationsSamsung does not state this for this model. · Manufacturer specification · Samsung's 860 EVO page and PDF do not state RAPID mode support in current software.
Samsung 860 EVO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · 250 GB page states 5 V ±5%.
Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung does not state this for this model. · Manufacturer specification · Samsung's 1 TB page and PDF do not state a supply-voltage tolerance.
Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · The Ukrainian page labels 2.2 W as a system-level average and 2.4 W as burst maximum. Hardware and configuration affect consumption.
Samsung 850 EVO — manufacturer specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Samsung's Ukrainian product page names Dynamic Thermal Guard.
Samsung 850 EVO — manufacturer specificationsSamsung does not state this for this model. · Manufacturer specification · Samsung does not name a thermal-protection feature for the 860 EVO.
Samsung 860 EVO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
23 shared fields have the same recorded value.
| Specification | Samsung 850 EVO | Samsung 860 EVO |
|---|---|---|
CapacityDifferent SourcesSamsung 850 EVO Manufacturer specification · Decimal capacity; formatting and system use reduce available space. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Decimal capacity; formatting and system use reduce available space. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 250 GB | 1000 GB |
SSD / HDD Sources | SSD | SSD |
Interface and version SourcesSamsung 850 EVO Backward compatible with SATA 3 Gb/s and 1.5 Gb/s. · Manufacturer specification · Requires compatible SATA data and power connections; link rate is not an application-performance result. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Backward compatible with SATA 3 Gb/s and 1.5 Gb/s. · Manufacturer specification · Requires compatible SATA data and power connections; link rate is not an application-performance result. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | SATA 6 Gb/s | SATA 6 Gb/s |
Form factor SourcesSamsung 850 EVO Manufacturer specification · Match the physical format and electrical interface to the host. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Match the physical format and electrical interface to the host. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 2.5-inch | 2.5-inch |
Enclosure dimensions SourcesSamsung 850 EVO Manufacturer specification · Manufacturer dimensions; confirm installation clearance. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer dimensions; confirm installation clearance. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 100 × 69.85 × 6.8 mm | 100 × 69.85 × 6.8 mm |
Thermal protection SourcesSamsung 850 EVO Manufacturer specification · Samsung's Ukrainian product page names Dynamic Thermal Guard. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO Samsung does not state this for this model. · Manufacturer specification · Samsung does not name a thermal-protection feature for the 860 EVO. Samsung 860 EVO — manufacturer specifications | Dynamic Thermal Guard | Not listed by the manufacturer |
Maximum drive weightDifferent SourcesSamsung 850 EVO Manufacturer specification · The 250 GB Ukrainian page states maximum 41.0 g. The family PDF lists a 55 g maximum across capacities. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · 1 TB Australian page specifies maximum 51.0 g, not average weight. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 41 g | 51 g |
Rated performance and conditionsDifferent SourcesSamsung 850 EVO Manufacturer specification · Samsung CrystalDiskMark 3.0.1 sequential claims: Core i7-4790K, 8 GB DDR3-1600, Intel Z97PRO, Windows 7 Ultimate SP1, Intel RST 13.0.3.1001. Writes use TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Samsung CrystalDiskMark 5.0.2 sequential claims: Core i5-3550, 4 GB DDR3-1333, ASUS P8H77-V, Windows 7 Ultimate 64-bit. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | Up to 540 MB/s sequential read; up to 520 MB/s cached sequential write; 300 MB/s after TurboWrite | Up to 550 MB/s sequential read; up to 520 MB/s cached sequential write; 500 MB/s after TurboWrite |
Rated sequential readDifferent SourcesSamsung 850 EVO Manufacturer specification · Samsung CrystalDiskMark 3.0.1 sequential claims: Core i7-4790K, 8 GB DDR3-1600, Intel Z97PRO, Windows 7 Ultimate SP1, Intel RST 13.0.3.1001. Writes use TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Samsung CrystalDiskMark 5.0.2 sequential claims: Core i5-3550, 4 GB DDR3-1333, ASUS P8H77-V, Windows 7 Ultimate 64-bit. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 860 EVO — capacity-specific datasheet | 540 MB/s | 550 MB/s |
Rated sequential write SourcesSamsung 850 EVO Manufacturer specification · Samsung CrystalDiskMark 3.0.1 sequential claims: Core i7-4790K, 8 GB DDR3-1600, Intel Z97PRO, Windows 7 Ultimate SP1, Intel RST 13.0.3.1001. Writes use TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Samsung CrystalDiskMark 5.0.2 sequential claims: Core i5-3550, 4 GB DDR3-1333, ASUS P8H77-V, Windows 7 Ultimate 64-bit. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 860 EVO — capacity-specific datasheet | 520 MB/s | 520 MB/s |
Rated write after TurboWriteDifferent SourcesSamsung 850 EVO Manufacturer specification · 250 GB after-buffer manufacturer claim is 300 MB/s under CDM3/i7-4790K/Z97PRO/8 GB/Windows 7 SP1 conditions. Peak 520 is cached. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · 1 TB post-cache claim is 500 MB/s under CDM5/i5-3550/P8H77-V/4 GB/Windows 7 conditions; the 250/500 GB models are rated 300 MB/s. Samsung 860 EVO — capacity-specific datasheet | 300 MB/s | 500 MB/s |
Rated random readDifferent SourcesSamsung 850 EVO Manufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i7-4790K / 8 GB DDR3-1600 / Z97PRO / Windows 7 Ultimate SP1 / Intel RST 13.0.3.1001; TurboWrite and firmware/host limitations apply. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i5-3550 / 4 GB DDR3-1333 / ASUS P8H77-V / Windows 7 Ultimate 64-bit. TurboWrite and firmware/host limitations apply. Samsung 860 EVO — capacity-specific datasheet | 97000 IOPS | 98000 IOPS |
Rated random writeDifferent SourcesSamsung 850 EVO Manufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i7-4790K / 8 GB DDR3-1600 / Z97PRO / Windows 7 Ultimate SP1 / Intel RST 13.0.3.1001; TurboWrite and firmware/host limitations apply. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer IOmeter 1.1.0, 4 KB QD32, i5-3550 / 4 GB DDR3-1333 / ASUS P8H77-V / Windows 7 Ultimate 64-bit. TurboWrite and firmware/host limitations apply. Samsung 860 EVO — capacity-specific datasheet | 88000 IOPS | 90000 IOPS |
Rated random read, QD1 SourcesSamsung 850 EVO Manufacturer specification · 4 KB QD1 manufacturer claim under the stated IOmeter host conditions; not observed application latency. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · 4 KB QD1 manufacturer claim under the stated IOmeter host conditions; not observed application latency. Samsung 860 EVO — capacity-specific datasheet | 10000 IOPS | 10000 IOPS |
Rated random write, QD1Different SourcesSamsung 850 EVO Manufacturer specification · Capacity 4 KB QD1 manufacturer claim under the stated IOmeter/TurboWrite conditions. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Capacity 4 KB QD1 manufacturer claim under the stated IOmeter/TurboWrite conditions. Samsung 860 EVO — capacity-specific datasheet | 40000 IOPS | 42000 IOPS |
RAPID host-memory caching SourcesSamsung 850 EVO Manufacturer specification · Ukrainian page advertises RAPID using free system memory. This is separate from onboard DRAM and raw SSD rates; Samsung's historical PCMark7 uplift is not a like-for-like drive benchmark. Check current software and operating-system requirements. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO Samsung does not state this for this model. · Manufacturer specification · Samsung's 860 EVO page and PDF do not state RAPID mode support in current software. Samsung 860 EVO — manufacturer specifications | Yes | Not listed by the manufacturer |
NAND type SourcesSamsung 850 EVO Manufacturer specification · Manufacturer calls this three-bit MLC; Samsung glossary identifies three bits per cell as TLC. Samsung does not give the layer count. Samsung 850 EVO — capacity-specific datasheetSamsung glossary — three-bit NAND is TLCSamsung 860 EVO Manufacturer specification · Manufacturer calls this three-bit MLC; Samsung glossary identifies three bits per cell as TLC. Samsung does not give the layer count. Samsung 860 EVO — capacity-specific datasheetSamsung glossary — three-bit NAND is TLC | Samsung V-NAND TLC | Samsung V-NAND TLC |
Cache arrangementDifferent SourcesSamsung 850 EVO Manufacturer specification · Manufacturer's stated DRAM cache capacity for this storage capacity. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer's stated DRAM cache capacity for this storage capacity. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 512 MB LPDDR3 DRAM | 1 GB LPDDR4 DRAM |
ControllerDifferent SourcesSamsung 850 EVO Manufacturer specification · The 250 GB model uses MGX; the 2 TB and 4 TB models use MHX. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · 1 TB MJX identified; no stepping or clock assumed. Samsung 860 EVO — capacity-specific datasheet | Samsung MGX | Samsung MJX |
DRAM cache present SourcesSamsung 850 EVO Manufacturer specification · Onboard DRAM listed; not host memory or the TurboWrite region. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Onboard DRAM listed; not host memory or the TurboWrite region. Samsung 860 EVO — capacity-specific datasheet | Yes | Yes |
DRAM cache capacityDifferent SourcesSamsung 850 EVO Manufacturer specification · 512 MB LPDDR3 on the 250 GB model. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · 1 GB LPDDR4 in 1 TB column. Samsung 860 EVO — capacity-specific datasheet | 512 MB | 1 GB |
Write-buffer technologyDifferent SourcesSamsung 850 EVO Manufacturer specification · SLC-style write-buffer feature named by manufacturer; capacity-specific post-buffer performance is shown separately. Samsung does not give the buffer size or a sustained write guarantee. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Variable write region, separate from onboard DRAM; Samsung's Australian footnote gives 42 GB for the 1 TB model. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | TurboWrite | Intelligent TurboWrite |
Published write-buffer capacity SourcesSamsung 850 EVO Samsung does not state this for this model. · Manufacturer specification · Samsung does not list the TurboWrite buffer size for the 250 GB model. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · AU capacity footnote gives 42 GB for 1 TB; dynamically allocated availability depends on workload and free space, not a permanent DRAM allocation. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | Not listed by the manufacturer | 42 GB |
Warranty terms and endurance if applicableDifferent SourcesSamsung 850 EVO Manufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limitSamsung 860 EVO Manufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limit | 5 years or 75 TB written, whichever comes first; limited-warranty terms apply | 5 years or 600 TB written, whichever comes first; limited-warranty terms apply |
Limited warranty time SourcesSamsung 850 EVO Manufacturer specification · Time limit, not predicted lifespan; coverage also ends at the TBW threshold and is subject to full terms. Samsung 850 EVO — manufacturer specificationsSamsung consumer SSD limited warranty — model, capacity and first limitSamsung 860 EVO Manufacturer specification · Time limit, not predicted lifespan; coverage also ends at the TBW threshold and is subject to full terms. Samsung 860 EVO — manufacturer specificationsSamsung consumer SSD limited warranty — model, capacity and first limit | 5 years | 5 years |
Warranty write thresholdDifferent SourcesSamsung 850 EVO Manufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limitSamsung 860 EVO Manufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheetSamsung consumer SSD limited warranty — model, capacity and first limit | 75 TB | 600 TB |
Manufacturer application scope SourcesSamsung 850 EVO Manufacturer specification · Requires correct SATA connections, host and clearance; no universal NAS compatibility. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Requires correct SATA connections, host and clearance; no universal NAS compatibility. Samsung 860 EVO — capacity-specific datasheet | Client PCs | Client PCs |
Manufacturer MTBF rating SourcesSamsung 850 EVO Manufacturer specification · Statistical manufacturer rating, not lifetime of an individual drive. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Statistical manufacturer rating, not lifetime of an individual drive. Samsung 860 EVO — capacity-specific datasheet | 1,500,000 hours | 1,500,000 hours |
Hardware encryption support SourcesSamsung 850 EVO Manufacturer specification · Supported capability, not automatically enabled security or universal host compatibility. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Supported capability, not automatically enabled security or universal host compatibility. Samsung 860 EVO — capacity-specific datasheet | AES-256; TCG Opal 2.0; IEEE 1667 | AES-256; TCG Opal 2.0; IEEE 1667 |
TRIM support SourcesSamsung 850 EVO Manufacturer specification · Manufacturer requires OS support. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer requires OS support. Samsung 860 EVO — capacity-specific datasheet | Yes | Yes |
S.M.A.R.T. support SourcesSamsung 850 EVO Manufacturer specification · Monitoring support, not a remaining-life guarantee. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Monitoring support, not a remaining-life guarantee. Samsung 860 EVO — capacity-specific datasheet | Yes | Yes |
Garbage collection SourcesSamsung 850 EVO Manufacturer specification · Internal feature, not a quantified application benefit. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Internal feature, not a quantified application benefit. Samsung 860 EVO — capacity-specific datasheet | Yes | Yes |
Queued TRIM capability SourcesSamsung 850 EVO Samsung does not state this for this model. · Manufacturer specification · Basic TRIM depends on operating-system support; Samsung does not state queued TRIM for this version. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO Manufacturer specification · Manufacturer specifically advertises improved queued TRIM and Linux compatibility. This is not certification for every Linux kernel, controller or firmware. Samsung 860 EVO — manufacturer specifications | Not listed by the manufacturer | Yes |
Drive management software SourcesSamsung 850 EVO Manufacturer specification · Manufacturer lists Magician and Data Migration. Check the current software version and its requirements. No latest-version claim. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer lists Magician and Data Migration. Check the current software version and its requirements. No latest-version claim. Samsung 860 EVO — capacity-specific datasheet | Samsung Magician | Samsung Magician |
PSID crypto erase SourcesSamsung 850 EVO Manufacturer specification · Rev3.1 security feature page mentions PSID crypto erase. Requires the appropriate procedure; not equivalent to encryption already being active. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Samsung does not state this for this model. · Manufacturer specification · Samsung's 860 EVO sources do not describe a PSID revert procedure. Samsung 860 EVO — capacity-specific datasheet | Yes | Not listed by the manufacturer |
Installation kit included SourcesSamsung 850 EVO Manufacturer specification · Regional product page says no installation kit. Listed box contents do not mention SATA cables or mounting hardware. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Regional product page says no installation kit. Listed box contents do not mention SATA cables or mounting hardware. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | No | No |
World Wide Name support SourcesSamsung 850 EVO Manufacturer specification · Regional page lists WWN support. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO Manufacturer specification · Regional page lists WWN support. Samsung 860 EVO — manufacturer specifications | Yes | Yes |
Device sleep support SourcesSamsung 850 EVO Manufacturer specification · The regional product page supports device sleep. Host and operating-system support are required; the separately specified sleep-power claim is not measured laptop battery life. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO Manufacturer specification · The regional product page supports device sleep. Host and operating-system support are required; the separately specified sleep-power claim is not measured laptop battery life. Samsung 860 EVO — manufacturer specifications | Yes | Yes |
Error correction support SourcesSamsung 850 EVO No source recorded. Samsung 860 EVO Manufacturer specification · Samsung describes a refined ECC algorithm. Samsung does not state its correction strength. Samsung 860 EVO — manufacturer specifications | Not provided | Yes |
Operating temperature SourcesSamsung 850 EVO Manufacturer specification · Manufacturer operating range; not a measured load temperature. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer operating range; not a measured load temperature. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 0–70 °C | 0–70 °C |
Published power conditionsDifferent SourcesSamsung 850 EVO Manufacturer specification · Ukrainian 250 GB page supplies average/burst/idle; PDF supplies 250 GB sleep. The PDF's 3.1/3.6 W active and 70 mW idle figures apply to the 4 TB model. Page does not publish its active test host. Not constant household consumption. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · 1 TB PDF figures measured with IOmeter 1.1.0, i7-7700K / 16 GB DDR4 / Gigabyte GA-Z270X / Windows 10 PRO K 64. Different host from speed testing. Idle requires DIPM; not a constant load. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 2.2 W average; 2.4 W maximum burst; up to 50 mW idle; 2 mW device sleep | 3.0 W average read/write; 50 mW DIPM idle; 2.6 mW device sleep |
Published burst powerDifferent SourcesSamsung 850 EVO Manufacturer specification · Regional product page maximum burst claim; not average or a constant operating load. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO Manufacturer specification · Regional product page maximum burst claim; not average or a constant operating load. Samsung 860 EVO — manufacturer specifications | 2.4 W | 4 W |
Storage temperatureDifferent SourcesSamsung 850 EVO Manufacturer specification · Manufacturer non-operating envelope. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer non-operating envelope. Samsung 860 EVO — capacity-specific datasheet | −40–85 °C | −45–85 °C |
Non-condensing humidity range SourcesSamsung 850 EVO Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating. Samsung 860 EVO — capacity-specific datasheet | 5–95% | 5–95% |
Non-operating shock rating SourcesSamsung 850 EVO Manufacturer specification · Manufacturer non-operating test, not a system drop guarantee. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Manufacturer non-operating test, not a system drop guarantee. Samsung 860 EVO — capacity-specific datasheet | 1500 G; 0.5 ms; three axes | 1500 G; 0.5 ms; three axes |
Non-operating vibration rating SourcesSamsung 850 EVO Manufacturer specification · Test envelope. Samsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Manufacturer specification · Test envelope. Samsung 860 EVO — capacity-specific datasheet | 20 G; 20–2000 Hz | 20 G; 20–2000 Hz |
Allowable supply voltage SourcesSamsung 850 EVO Manufacturer specification · 250 GB page states 5 V ±5%. Samsung 850 EVO — manufacturer specificationsSamsung 850 EVO — capacity-specific datasheetSamsung 860 EVO Samsung does not state this for this model. · Manufacturer specification · Samsung's 1 TB page and PDF do not state a supply-voltage tolerance. Samsung 860 EVO — manufacturer specificationsSamsung 860 EVO — capacity-specific datasheet | 5 V ±5% | Not listed by the manufacturer |
Published system-level power SourcesSamsung 850 EVO Manufacturer specification · The Ukrainian page labels 2.2 W as a system-level average and 2.4 W as burst maximum. Hardware and configuration affect consumption. Samsung 850 EVO — manufacturer specificationsSamsung 860 EVO No source recorded. | 2.2 W average; 2.4 W maximum in burst mode | Not provided |
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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
