CrucialCT525MX300SSD1
SamsungMZ-7KE512BW

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC. Release date: Q2 2016.

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

Real World Speed
Performance profile from 70,818 user samples
39,477 User Benchmarks
Best Bench: 100% 76GB free
Worst Bench: 66% 52GB free (System drive)
Poor: 66% Great: 100%
SPEED RANK: 285th / 992
31,341 User Benchmarks
Best Bench: 127% 144GB free
Worst Bench: 72% 477GB free
Poor: 72% Great: 127%
SPEED RANK: 175th / 992
Effective Speed
Effective SSD Speed
87.1 % 103 % Faster effective speed.
+19%
Read
Avg. Sequential Read Speed
400 MB/s 468 MB/s Faster read speed.
+17%
Write
Avg. Sequential Write Speed
405 MB/s 409 MB/s +1%
4K Read
Avg. 4K Random Read Speed
24.4 MB/s 33 MB/s Much faster random read.
+35%
4K Write
Avg. 4K Random Write Speed
89.5 MB/s 90.1 MB/s +1%
Mixed
Avg. Sequential Mixed IO Speed
348 MB/s 349 MB/s +0%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.8 MB/s 44 MB/s Faster random mixed IO.
+23%
SusWrite
Avg. Sustained Write Speed
291 MB/s 370 MB/s Faster sustained write speed.
+27%
Read
Peak Sequential Read Speed
439 MB/s 515 MB/s Faster peak read speed.
+17%
Write
Peak Sequential Write Speed
481 MB/s 487 MB/s +1%
4K Read
Peak 4K Random Read Speed
28.4 MB/s 43.6 MB/s Much faster peak random read.
+54%
4K Write
Peak 4K Random Write Speed
122 MB/s 129 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed
389 MB/s 399 MB/s +3%
4K Mixed
Peak 4K Random Mixed IO Speed
42.6 MB/s 58.2 MB/s Much faster peak random mixed IO.
+37%
SusWrite
Peak Sequential Sustained Write 60s Average
332 MB/s 482 MB/s Much faster peak sustained write speed.
+45%
Market Share
Based on 12,966,448 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.33 % Higher market share.
+27%
0.26 %
Value
Value For Money
168 % Hugely better value.
+83%
91.9 %
User Rating
UBM User Rating
65 % 74 % Slightly more popular.
+14%
Price
Price (score)
$83 Much cheaper.
+63%
$227
Age
Newest
33 Months Much more recent.
+41%
56 Months
DQ Read
Peak 4K-64Thread Read Speed
352 MB/s 388 MB/s Slightly faster peak deep queue read.
+10%
DQ Write
Peak 4K-64Thread Write Speed
327 MB/s 354 MB/s Slightly faster peak deep queue write.
+8%
AS-SSD Total
AS-SSD Total Score
1,150 Pts 1,277 Pts Slightly stronger server IO.
+11%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
330 MB/s 362 MB/s Slightly faster peak deep queue mixed IO.
+10%
ADQ Read
Avg. 4K-64Thread Read Speed
310 MB/s 343 MB/s Slightly faster deep queue read.
+11%
ADQ Write
Avg. 4K-64Thread Write Speed
283 MB/s 300 MB/s Slightly faster deep queue write.
+6%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
284 MB/s 304 MB/s Slightly faster deep queue mixed IO.
+7%
Capacity
Capacity
525GB 512GB
Solid State Drive Rankings (Price vs Performance) March 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 $370Nvidia GTX 1070 $364Samsung 850 Evo 250GB $75
AMD Ryzen 5 1600 $120Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $761SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $110SanDisk Ultra Fit 32GB $12
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