CrucialCT250MX500SSD1
SamsungMZ-7KE256BW

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC.

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

Real World Speed
Performance profile from 39,349 user samples
2,915 User Benchmarks
Best Bench: 125% 103GB free
Worst Bench: 74% 154GB free
Poor: 74% Great: 125%
SPEED RANK: 134th / 955
36,434 User Benchmarks
Best Bench: 124% 205GB free (System drive)
Worst Bench: 77% 81GB free (System drive)
Poor: 77% Great: 124%
SPEED RANK: 134th / 955
Effective Speed
Effective SSD Speed
105 % 105 % +0%
Read
Avg. Sequential Read Speed
471 MB/s 475 MB/s +1%
Write
Avg. Sequential Write Speed
414 MB/s 421 MB/s +2%
4K Read
Avg. 4K Random Read Speed
34.5 MB/s 34.5 MB/s
4K Write
Avg. 4K Random Write Speed
87.2 MB/s 97.6 MB/s Slightly faster random write.
+12%
Mixed
Avg. Sequential Mixed IO Speed
406 MB/s Faster mixed IO speed.
+19%
340 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
47.3 MB/s +4% 45.5 MB/s
SusWrite
Avg. Sustained Write Speed
369 MB/s +2% 362 MB/s
Read
Peak Sequential Read Speed
514 MB/s 517 MB/s +1%
Write
Peak Sequential Write Speed
467 MB/s 489 MB/s +5%
4K Read
Peak 4K Random Read Speed
42.5 MB/s 44.1 MB/s +4%
4K Write
Peak 4K Random Write Speed
121 MB/s 131 MB/s Slightly faster peak random write.
+8%
Mixed
Peak Sequential Mixed IO Speed
450 MB/s Faster peak mixed IO speed.
+18%
382 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
59.8 MB/s +1% 59 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
458 MB/s 478 MB/s +4%
Market Share
Based on 7,531,488 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.31 % 1.45 % Hugely higher market share.
+368%
Value
Value For Money
149 % Hugely better value.
+106%
72.4 %
User Rating
UBM User Rating
73 % 97 % Much more popular.
+33%
Price
Price (score)
$59 Much cheaper.
+63%
$160
Age
Newest
6 Months Hugely more recent.
+88%
48 Months
DQ Read
Peak 4K-64Thread Read Speed
385 MB/s 388 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
354 MB/s +0% 353 MB/s
AS-SSD Total
AS-SSD Total Score
1,259 Pts 1,279 Pts +2%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
278 MB/s 357 MB/s Faster peak deep queue mixed IO.
+28%
ADQ Read
Avg. 4K-64Thread Read Speed
338 MB/s +1% 334 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
306 MB/s +2% 300 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
241 MB/s 293 MB/s Faster deep queue mixed IO.
+22%
Capacity
Capacity
250GB 256GB
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The MX500 is Crucial’s current flagship consumer SATA SSD featuring their latest second generation 64-layer 3D TLC NAND. It’s available in 250 GB, 500 GB, 1 TB and 2 TB capacities in a 2.5-inch form factor. All but the 2 TB version will also be available in M.2 (2280) form in the future. The MX500 features a Silicon Motion SM2258 controller which is a change from the Marvell 88SS1074 controller featured in the MX300 (it’s nearly two year old predecessor). Performance is around 30% better than on the MX300 which currently retails at the same price. The MX500 has an SLC cache which increases with drive capacity. Consequently, the larger capacities are better able to sustain high sequential write speeds. The 250 GB version has 250MB of SLC cache, the 500 GB has 512 MB, the 1 TB has 1 GB and the 2 TB has 2 GB. Extended sustained write performance tests show that even though speed does drop off after the cache has been exhausted, it is still maintained at very respectable levels. The MX500’s five year warranty is in line with Samsung’s 850 Evo and exceeds it in terms of endurance (just 75 TBW for the 250 GB 850 Evo versus 100 TBW for the 250 GB MX500). It doesn’t quite match up to the Samsung’s 850 Evo’s performance (effective speed 8% slower), however at current prices it is about 20% cheaper, and on balance offers better value for money. [Mar '18 SSDrivePro]

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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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Solid State Drive Rankings (Price vs Performance) July 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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 $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i7-7700K $275AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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