CrucialCT1000MX500SSD1
SamsungMZ-7KE256BW

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC. Release date ≈ Q4 2017.

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

Real World Speed
Performance profile from 78,146 user samples
19,227 User Benchmarks
Best Bench: 125% 638GB free
Worst Bench: 78% 32GB free (System drive)
Poor: 78% Great: 125%
SPEED RANK: 167th / 1003
58,919 User Benchmarks
Best Bench: 125% 195GB free
Worst Bench: 70% 48GB free (System drive)
Poor: 70% Great: 125%
SPEED RANK: 187th / 1003
Effective Speed
Effective SSD Speed
108 % Slightly faster effective speed.
+6%
103 %
Read
Avg. Sequential Read Speed
478 MB/s +2% 469 MB/s
Write
Avg. Sequential Write Speed
420 MB/s +3% 407 MB/s
4K Read
Avg. 4K Random Read Speed
33.3 MB/s +0% 33.2 MB/s
4K Write
Avg. 4K Random Write Speed
88.2 MB/s 91.5 MB/s +4%
Mixed
Avg. Sequential Mixed IO Speed
397 MB/s Faster mixed IO speed.
+18%
336 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
47.4 MB/s Slightly faster random mixed IO.
+8%
43.8 MB/s
SusWrite
Avg. Sustained Write Speed
410 MB/s Faster sustained write speed.
+16%
354 MB/s
Read
Peak Sequential Read Speed
514 MB/s 516 MB/s +0%
Write
Peak Sequential Write Speed
469 MB/s 489 MB/s +4%
4K Read
Peak 4K Random Read Speed
40 MB/s 42.8 MB/s Slightly faster peak random read.
+7%
4K Write
Peak 4K Random Write Speed
120 MB/s 128 MB/s Slightly faster peak random write.
+7%
Mixed
Peak Sequential Mixed IO Speed
434 MB/s Slightly faster peak mixed IO speed.
+13%
384 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
58.7 MB/s +4% 56.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
458 MB/s 482 MB/s Slightly faster peak sustained write speed.
+5%
Market Share
Based on 15,176,650 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.48 % Much higher market share.
+37%
0.35 %
Value
Value For Money
278 % Hugely better value.
+171%
102 %
User Rating
UBM User Rating
74 % 96 % More popular.
+30%
Price
Price (score)
$108 $97 Slightly cheaper.
+10%
Age
Newest
17+ Months Much more recent.
+71%
59 Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s +0% 388 MB/s
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s +0% 360 MB/s
AS-SSD Total
AS-SSD Total Score
1,266 Pts 1,281 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
309 MB/s 359 MB/s Faster peak deep queue mixed IO.
+16%
ADQ Read
Avg. 4K-64Thread Read Speed
353 MB/s +4% 340 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
319 MB/s Slightly faster deep queue write.
+6%
301 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
279 MB/s 297 MB/s Slightly faster deep queue mixed IO.
+6%
Capacity
Capacity
1TB 256GB
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Crucial MX500 1TB performance within a whisker of the Samsung 850 EVO, which in real life means it feels just as fast, at 11% lower price. Saved £30! [Jan '18 SUpstone5]

MORE DETAILS

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) June 2019 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 $350Nvidia GTX 1070 $335Samsung 850 Evo 250GB $101
AMD Ryzen 5 2600 $144Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $274Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Ultra Fit 32GB $12
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