SamsungMZ-7KE256BW
SamsungMZ-76E250B

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

Controller: Samsung MJX. Memory: Samsung 64 layer TLC V-NAND. Release date: Q1 2018.

Real World Speed
Performance profile from 80,210 user samples
49,734 User Benchmarks
Best Bench: 126% 152GB free
Worst Bench: 72% 147GB free (System drive)
Poor: 72% Great: 126%
SPEED RANK: 153rd / 976
30,476 User Benchmarks
Best Bench: 128% 68GB free
Worst Bench: 74% 90GB free (System drive)
Poor: 74% Great: 128%
SPEED RANK: 150th / 976
Effective Speed
Effective SSD Speed
104 % 105 % +1%
Read
Avg. Sequential Read Speed
471 MB/s 479 MB/s +2%
Write
Avg. Sequential Write Speed
414 MB/s +4% 400 MB/s
4K Read
Avg. 4K Random Read Speed
34.3 MB/s 38.7 MB/s Slightly faster random read.
+13%
4K Write
Avg. 4K Random Write Speed
96.6 MB/s +1% 95.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed
341 MB/s 379 MB/s Slightly faster mixed IO speed.
+11%
4K Mixed
Avg. 4K Random Mixed IO Speed
45.1 MB/s 48.9 MB/s Slightly faster random mixed IO.
+8%
SusWrite
Avg. Sustained Write Speed
356 MB/s Faster sustained write speed.
+17%
303 MB/s
Read
Peak Sequential Read Speed
516 MB/s 516 MB/s
Write
Peak Sequential Write Speed
488 MB/s 492 MB/s +1%
4K Read
Peak 4K Random Read Speed
44 MB/s 50.8 MB/s Faster peak random read.
+15%
4K Write
Peak 4K Random Write Speed
131 MB/s 131 MB/s
Mixed
Peak Sequential Mixed IO Speed
385 MB/s 463 MB/s Faster peak mixed IO speed.
+20%
4K Mixed
Peak 4K Random Mixed IO Speed
57.7 MB/s 66.8 MB/s Faster peak random mixed IO.
+16%
SusWrite
Peak Sequential Sustained Write 60s Average
479 MB/s Much faster peak sustained write speed.
+31%
366 MB/s
Market Share
Based on 10,387,541 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.53 % 2.2 % Hugely higher market share.
+315%
Value
Value For Money
70.8 % 162 % Hugely better value.
+129%
User Rating
UBM User Rating
96 % Much more popular.
+48%
65 %
Price
Price (score)
$163 $53 Much cheaper.
+67%
Age
Newest
53 Months 10 Months Hugely more recent.
+81%
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s 389 MB/s +0%
DQ Write
Peak 4K-64Thread Write Speed
353 MB/s 361 MB/s +2%
AS-SSD Total
AS-SSD Total Score
1,279 Pts 1,302 Pts +2%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
357 MB/s 370 MB/s +4%
ADQ Read
Avg. 4K-64Thread Read Speed
338 MB/s 346 MB/s +2%
ADQ Write
Avg. 4K-64Thread Write Speed
298 MB/s 299 MB/s +0%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
292 MB/s +3% 283 MB/s
Capacity
Capacity
256GB 250GB
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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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The 860 Evo is the latest mainstream SATA SSD from Samsung. The 2.5-inch version of the 860 Evo will be available in several capacities ranging from 250 GB to a staggering 4TB. It’s also available in the slimmer M.2 and mSATA form factors. The 860 Evo demonstrates marginally reduced performance compared to its popular, but now three year old predecessor, the 850 Evo. In a head to head comparison the 860 looses by a very modest 6% in terms of effective speed. The 860 Evo is based on a refinement of Samsung’s consumer grade TLC V-NAND, this time featuring 256Gb and 512 Gb 64 layer V-NAND and it also features a new "MJX" controller. The 250 GB version can reach sequential write speeds of up to 520 MB/s, dropping to 300 MB/s once the SLC cache is exhausted (the 250 GB version has a 12 GB SLC write cache). Peak sequential read speeds of 560 MB/s are achievable across the different capacities. The 250GB version has a 512 MB LPDDR4 DRAM cache. All capacities have a five year warranty, but as a testament to the enhanced reliability of this new technology, the warrantied terabytes written (TBW) has doubled from 75 TBW to 150 TBW for the 250 GB 860 Evo. [Jan '18 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) December 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 - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $330Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $210Samsung 850 Evo 500GB $90
Intel Core i5-8600K $249Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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