SamsungMZ-7KE256BW
CrucialCT256MX100SSD1
$116

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

 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC.

Real World Speed
Performance profile from 25,582 user samples
17,024 User Benchmarks
Best Bench: 125% 192GB free
Worst Bench: 74% 163GB free
Poor: 74% Great: 125%
SPEED RANK: 47th / 848
8,558 User Benchmarks
Best Bench: 96% 195GB free
Worst Bench: 60% 5GB free
Poor: 60% Great: 96%
SPEED RANK: 184th / 848
Effective Speed
Effective SSD Speed
101 % Faster effective speed.
+26%
80 % -26%
Read
Avg. Sequential Read Speed
507 MB/s +3% 493 MB/s -3%
Write
Avg. Sequential Write Speed
443 MB/s Much faster write speed.
+38%
321 MB/s -38%
4K Read
Avg. 4K Random Read Speed
32.9 MB/s Much faster random read.
+31%
25.1 MB/s -31%
4K Write
Avg. 4K Random Write Speed
91.5 MB/s Slightly faster random write.
+12%
81.9 MB/s -12%
Mixed
Avg. Sequential Mixed IO Speed
466 MB/s Faster mixed IO speed.
+27%
368 MB/s -27%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.2 MB/s Much faster random mixed IO.
+46%
24.1 MB/s -46%
Read
Peak Sequential Read Speed
529 MB/s +1% 522 MB/s -1%
Write
Peak Sequential Write Speed
502 MB/s Much faster peak write speed.
+52%
331 MB/s -52%
4K Read
Peak 4K Random Read Speed
41.2 MB/s Much faster peak random read.
+32%
31.3 MB/s -32%
4K Write
Peak 4K Random Write Speed
130 MB/s +4% 125 MB/s -4%
Mixed
Peak Sequential Mixed IO Speed
514 MB/s Faster peak mixed IO speed.
+30%
396 MB/s -30%
4K Mixed
Peak 4K Random Mixed IO Speed
50.5 MB/s Much faster peak random mixed IO.
+50%
33.6 MB/s -50%
Market Share
Based on 2,355,258 SSDs tested.
Market Share
Market Share (trailing 30 days)
1.5 % Hugely higher market share.
+88%
0.8 % -88%
Value
Value For Money
77.5 % Slightly better value.
+11%
70 % -11%
User Rating
UBM User Rating
96 % Much more popular.
+52%
63 % -52%
Price
Price (score)
$138 -16% $116 Cheaper.
+16%
Age
Newest
32 Months +3% 33 Months -3%
DQ Read
Peak 4K-64Thread Read Speed
384 MB/s Hugely faster peak deep queue read.
+86%
207 MB/s -86%
DQ Write
Peak 4K-64Thread Write Speed
348 MB/s Slightly faster peak deep queue write.
+14%
304 MB/s -14%
AS-SSD Total
AS-SSD Total Score
1,265 Pts Much stronger server IO.
+40%
904 Pts -40%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
168 MB/s Hugely faster peak deep queue mixed IO.
+228%
51.2 MB/s -228%
ADQ Read
Avg. 4K-64Thread Read Speed
222 MB/s Hugely faster deep queue read.
+88%
118 MB/s -88%
ADQ Write
Avg. 4K-64Thread Write Speed
228 MB/s Slightly faster deep queue write.
+13%
201 MB/s -13%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
95.2 MB/s Hugely faster deep queue mixed IO.
+171%
35.1 MB/s -171%
Capacity
Capacity
256GB 256GB
ADVERTISEMENT

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 Crucial MX100 is the first 16nm SSD to date. Aside from NAND, the MX100 shares the same hardware as its more expensive sibling, the M550. Comparing the MX100 and M550 shows that the two drives have similar read speeds but that the MX100 lags by nearly 50% at writing. The newer 16nm NAND reduces costs and accordingly the MX100 is the cheapest SSD (per GB) to date. In terms of performance the MX100 is a compromise which may or may not be worth making depending on individual circumstances. For typical desktop use including email, office documents and web browsing the MX100 is a great choice but power users should look elsewhere. Comparing the 250GB 840 EVO and 256GB MX100 shows that for a marginal premium, the Evo offers better write speeds. (Note: at 500GB they are more evenly matched) [Jun '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) March 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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 i7-7700K $310Nvidia GTX 1070 $370Samsung 850 Evo 250GB $94
AMD Ryzen 7 1700 $325AMD RX 480 $193Samsung 850 Pro 256GB $138
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $235Samsung 850 Evo 500GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $650SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $9
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