SamsungMZ-7KE256BW
SamsungMZ-7TE250BW

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

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC. Release date: Q3 2013.

Real World Speed
Performance profile from 105,519 user samples
41,074 User Benchmarks
Best Bench: 126% 190GB free
Worst Bench: 76% 57GB free (System drive)
Poor: 76% Great: 126%
SPEED RANK: 136th / 956
64,445 User Benchmarks
Best Bench: 117% 221GB free
Worst Bench: 60% 176GB free (System drive)
Poor: 60% Great: 117%
SPEED RANK: 159th / 956
Effective Speed
Effective SSD Speed
106 % Slightly faster effective speed.
+12%
95.3 %
Read
Avg. Sequential Read Speed
477 MB/s +5% 456 MB/s
Write
Avg. Sequential Write Speed
420 MB/s +4% 403 MB/s
4K Read
Avg. 4K Random Read Speed
34.9 MB/s 38 MB/s Slightly faster random read.
+9%
4K Write
Avg. 4K Random Write Speed
99.1 MB/s Slightly faster random write.
+10%
89.7 MB/s
Mixed
Avg. Sequential Mixed IO Speed
343 MB/s +1% 339 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
46.5 MB/s 47.9 MB/s +3%
SusWrite
Avg. Sustained Write Speed
356 MB/s Hugely faster sustained write speed.
+90%
187 MB/s
Read
Peak Sequential Read Speed
516 MB/s +2% 508 MB/s
Write
Peak Sequential Write Speed
489 MB/s +0% 488 MB/s
4K Read
Peak 4K Random Read Speed
45.3 MB/s 46.5 MB/s +3%
4K Write
Peak 4K Random Write Speed
132 MB/s Slightly faster peak random write.
+8%
122 MB/s
Mixed
Peak Sequential Mixed IO Speed
384 MB/s 410 MB/s Slightly faster peak mixed IO speed.
+7%
4K Mixed
Peak 4K Random Mixed IO Speed
59.8 MB/s 60 MB/s +0%
SusWrite
Peak Sequential Sustained Write 60s Average
480 MB/s Much faster peak sustained write speed.
+63%
294 MB/s
Market Share
Based on 8,001,532 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.63 % 1.12 % Much higher market share.
+78%
Value
Value For Money
72.1 % Much better value.
+36%
53 %
User Rating
UBM User Rating
97 % Much more popular.
+64%
59 %
Price
Price (score)
$163 Cheaper.
+21%
$207
Age
Newest
49 Months More recent.
+20%
61 Months
DQ Read
Peak 4K-64Thread Read Speed
387 MB/s +1% 384 MB/s
DQ Write
Peak 4K-64Thread Write Speed
352 MB/s 354 MB/s +1%
AS-SSD Total
AS-SSD Total Score
1,280 Pts +1% 1269 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
357 MB/s Much faster peak deep queue mixed IO.
+51%
236 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
351 MB/s Slightly faster deep queue read.
+6%
330 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
306 MB/s +2% 299 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
304 MB/s Much faster deep queue mixed IO.
+53%
199 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]

MORE DETAILS

The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) August 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 $330Nvidia GTX 1070 $370Samsung 850 Evo 250GB $95
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $120
Intel Core i5-8600K $240AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $901SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
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