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 121,941 user samples
47,304 User Benchmarks
Best Bench: 125% 41GB free
Worst Bench: 71% 188GB free (System drive)
Poor: 71% Great: 125%
SPEED RANK: 146th / 959
74,637 User Benchmarks
Best Bench: 116% 48GB free
Worst Bench: 65% 155GB free (System drive)
Poor: 65% Great: 116%
SPEED RANK: 162nd / 959
Effective Speed
Effective SSD Speed
103 % Slightly faster effective speed.
+7%
96.2 %
Read
Avg. Sequential Read Speed
469 MB/s +1% 466 MB/s
Write
Avg. Sequential Write Speed
413 MB/s +1% 410 MB/s
4K Read
Avg. 4K Random Read Speed
33.6 MB/s 38.9 MB/s Faster random read.
+16%
4K Write
Avg. 4K Random Write Speed
93.2 MB/s +3% 90.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed
337 MB/s 343 MB/s +2%
4K Mixed
Avg. 4K Random Mixed IO Speed
44.5 MB/s 48.5 MB/s Slightly faster random mixed IO.
+9%
SusWrite
Avg. Sustained Write Speed
354 MB/s Hugely faster sustained write speed.
+95%
182 MB/s
Read
Peak Sequential Read Speed
516 MB/s +2% 507 MB/s
Write
Peak Sequential Write Speed
488 MB/s 488 MB/s
4K Read
Peak 4K Random Read Speed
42.7 MB/s 46.5 MB/s Slightly faster peak random read.
+9%
4K Write
Peak 4K Random Write Speed
125 MB/s +3% 121 MB/s
Mixed
Peak Sequential Mixed IO Speed
383 MB/s 408 MB/s Slightly faster peak mixed IO speed.
+7%
4K Mixed
Peak 4K Random Mixed IO Speed
57.7 MB/s 59.8 MB/s +4%
SusWrite
Peak Sequential Sustained Write 60s Average
478 MB/s Much faster peak sustained write speed.
+63%
293 MB/s
Market Share
Based on 9,080,066 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.64 % 1.12 % Much higher market share.
+75%
Value
Value For Money
70 % Much better value.
+31%
53.5 %
User Rating
UBM User Rating
96 % Much more popular.
+63%
59 %
Price
Price (score)
$163 Cheaper.
+21%
$207
Age
Newest
51 Months More recent.
+19%
63 Months
DQ Read
Peak 4K-64Thread Read Speed
387 MB/s +1% 383 MB/s
DQ Write
Peak 4K-64Thread Write Speed
353 MB/s 356 MB/s +1%
AS-SSD Total
AS-SSD Total Score
1,269 Pts +0% 1,268 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
357 MB/s Much faster peak deep queue mixed IO.
+51%
237 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
340 MB/s +2% 333 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
305 MB/s +1% 303 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
300 MB/s Much faster deep queue mixed IO.
+50%
200 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) October 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 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $110
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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