SamsungMZ-7KE256BW
CrucialCT250MX500SSD1

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

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

Real World Speed
Performance profile from 53,255 user samples
47,123 User Benchmarks
Best Bench: 124% 238GB free
Worst Bench: 76% 226GB free
Poor: 76% Great: 124%
SPEED RANK: 145th / 964
6,132 User Benchmarks
Best Bench: 124% 177GB free (System drive)
Worst Bench: 70% 81GB free (System drive)
Poor: 70% Great: 124%
SPEED RANK: 146th / 964
Effective Speed
Effective SSD Speed
105 % +0% 105 %
Read
Avg. Sequential Read Speed
478 MB/s +2% 470 MB/s
Write
Avg. Sequential Write Speed
421 MB/s +1% 418 MB/s
4K Read
Avg. 4K Random Read Speed
34.1 MB/s 34.2 MB/s +0%
4K Write
Avg. 4K Random Write Speed
94.7 MB/s Slightly faster random write.
+10%
86.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed
342 MB/s 409 MB/s Faster mixed IO speed.
+20%
4K Mixed
Avg. 4K Random Mixed IO Speed
44.8 MB/s 47 MB/s +5%
SusWrite
Avg. Sustained Write Speed
363 MB/s 372 MB/s +2%
Read
Peak Sequential Read Speed
516 MB/s +0% 514 MB/s
Write
Peak Sequential Write Speed
490 MB/s +5% 468 MB/s
4K Read
Peak 4K Random Read Speed
43.6 MB/s +4% 42.1 MB/s
4K Write
Peak 4K Random Write Speed
127 MB/s Slightly faster peak random write.
+6%
120 MB/s
Mixed
Peak Sequential Mixed IO Speed
385 MB/s 451 MB/s Faster peak mixed IO speed.
+17%
4K Mixed
Peak 4K Random Mixed IO Speed
57.2 MB/s 59.1 MB/s +3%
SusWrite
Peak Sequential Sustained Write 60s Average
481 MB/s Slightly faster peak sustained write speed.
+6%
455 MB/s
Market Share
Based on 9,664,317 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.63 % Much higher market share.
+66%
0.38 %
Value
Value For Money
71.2 % 162 % Hugely better value.
+128%
User Rating
UBM User Rating
96 % More popular.
+25%
77 %
Price
Price (score)
$163 $53 Much cheaper.
+68%
Age
Newest
52 Months 10 Months Hugely more recent.
+81%
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s +1% 386 MB/s
DQ Write
Peak 4K-64Thread Write Speed
354 MB/s 359 MB/s +1%
AS-SSD Total
AS-SSD Total Score
1,275 Pts +1% 1,264 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
357 MB/s Faster peak deep queue mixed IO.
+28%
279 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
348 MB/s +5% 333 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
309 MB/s +1% 306 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
306 MB/s Faster deep queue mixed IO.
+25%
244 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 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]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) November 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 $359Nvidia GTX 1070 $340Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $234Samsung 850 Evo 500GB $97
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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