SamsungMZ-76P256BW
SamsungMZ-7KE256BW

Controller: Samsung MJX. Memory: Samsung 64 layer MLC V-NAND.

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

Real World Speed
Performance profile from 42,853 user samples
163 User Benchmarks
Best Bench: 126% 114GB free
Worst Bench: 74% 192GB free
Poor: 74% Great: 126%
SPEED RANK: 97th / 921
42,690 User Benchmarks
Best Bench: 121% 159GB free
Worst Bench: 72% 70GB free
Poor: 72% Great: 121%
SPEED RANK: 105th / 921
Effective Speed
Effective SSD Speed
103 % Slightly faster effective speed.
+5%
97.6 %
Read
Avg. Sequential Read Speed
509 MB/s +1% 505 MB/s
Write
Avg. Sequential Write Speed
481 MB/s Slightly faster write speed.
+9%
441 MB/s
4K Read
Avg. 4K Random Read Speed
34.5 MB/s Slightly faster random read.
+6%
32.4 MB/s
4K Write
Avg. 4K Random Write Speed
86 MB/s 86.2 MB/s +0%
Mixed
Avg. Sequential Mixed IO Speed
497 MB/s Slightly faster mixed IO speed.
+8%
462 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
36.7 MB/s Slightly faster random mixed IO.
+11%
33.1 MB/s
Read
Peak Sequential Read Speed
530 MB/s +0% 528 MB/s
Write
Peak Sequential Write Speed
503 MB/s +0% 502 MB/s
4K Read
Peak 4K Random Read Speed
44.7 MB/s +4% 42.9 MB/s
4K Write
Peak 4K Random Write Speed
125 MB/s +2% 122 MB/s
Mixed
Peak Sequential Mixed IO Speed
519 MB/s +1% 514 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
55.5 MB/s Slightly faster peak random mixed IO.
+8%
51.2 MB/s
Market Share
Based on 6,451,774 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 0.74 % Insanely higher market share.
+1,133%
Value
Value For Money
78.6 % Better value.
+19%
66.1 %
User Rating
UBM User Rating
51 % 99 % Hugely more popular.
+94%
Price
Price (score)
$139 Slightly cheaper.
+15%
$163
Age
Newest
3 Months Hugely more recent.
+93%
45 Months
DQ Read
Peak 4K-64Thread Read Speed
380 MB/s +1% 375 MB/s
DQ Write
Peak 4K-64Thread Write Speed
345 MB/s +2% 339 MB/s
AS-SSD Total
AS-SSD Total Score
1,258 Pts +2% 1,237 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
139 MB/s 161 MB/s Faster peak deep queue mixed IO.
+16%
ADQ Read
Avg. 4K-64Thread Read Speed
188 MB/s 189 MB/s +1%
ADQ Write
Avg. 4K-64Thread Write Speed
210 MB/s 210 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
76.5 MB/s 81.9 MB/s Slightly faster deep queue mixed IO.
+7%
Capacity
Capacity
256GB 256GB
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The 860 Pro is Samsung’s latest consumer-grade SATA SSD flagship, superseding the popular, but now three years old, 850 Pro. Like the 850 Pro, the 860 Pro is based on Samsung’s proprietary and revolutionary (at the time), MLC V-NAND (3D). A 10% price premium over the 256 GB 850 Pro will purchase the 256 GB 860 Pro which has an impressive 16% faster effective speed. This is achieved via an updated controller (MJX) and 64 layers of V-NAND (versus 32 layers per the 850 Pro). The 860 Pro has sequential speeds of up to 540 MB/s which almost completely saturate its SATA 3.0 interface. These peak levels of performance are slightly higher, but still comparable to the peak performance of the 860 Evo before its SLC write cache (12 GB on the 250 GB Evo) is saturated, making the 860 Evo (at around 30% cheaper) a more economical choice for users who rarely write more than 12 GB at a time. There are also reliability improvements compared to the 850 generation with Samsung now offering a warranty of 300 TBW (terabytes written) for the 256 GB 860 Pro, compared to 150 TBW for the 256 GB 850 Pro. Thanks to higher density NAND, the 860 Pro is also available in a 4 TB variant, whereas previously 2 TB was the largest capacity for a Samsung SATA MLC SSD.  [Feb '18 SSDrivePro]

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The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

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Solid State Drive Rankings (Price vs Performance) April 2018 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $175AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Ultra Fit 32GB $12
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