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 52,810 user samples
27,641 User Benchmarks
Best Bench: 100% 262GB free
Worst Bench: 62% 347GB free (System drive)
Poor: 62% Great: 100%
SPEED RANK: 240th / 959
25,169 User Benchmarks
Best Bench: 127% 374GB free
Worst Bench: 76% 53GB free (System drive)
Poor: 76% Great: 127%
SPEED RANK: 141st / 959
Effective Speed
Effective SSD Speed
86.9 % 105 % Faster effective speed.
+20%
Read
Avg. Sequential Read Speed
399 MB/s 472 MB/s Faster read speed.
+18%
Write
Avg. Sequential Write Speed
403 MB/s +1% 400 MB/s
4K Read
Avg. 4K Random Read Speed
24.5 MB/s 34.3 MB/s Much faster random read.
+40%
4K Write
Avg. 4K Random Write Speed
90.7 MB/s 95.5 MB/s Slightly faster random write.
+5%
Mixed
Avg. Sequential Mixed IO Speed
346 MB/s 348 MB/s +1%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.9 MB/s 45.7 MB/s Faster random mixed IO.
+27%
SusWrite
Avg. Sustained Write Speed
290 MB/s 353 MB/s Faster sustained write speed.
+22%
Read
Peak Sequential Read Speed
435 MB/s 515 MB/s Faster peak read speed.
+18%
Write
Peak Sequential Write Speed
480 MB/s 488 MB/s +2%
4K Read
Peak 4K Random Read Speed
28.5 MB/s 43.8 MB/s Much faster peak random read.
+54%
4K Write
Peak 4K Random Write Speed
122 MB/s 132 MB/s Slightly faster peak random write.
+8%
Mixed
Peak Sequential Mixed IO Speed
388 MB/s 397 MB/s +2%
4K Mixed
Peak 4K Random Mixed IO Speed
42.9 MB/s 60 MB/s Much faster peak random mixed IO.
+40%
SusWrite
Peak Sequential Sustained Write 60s Average
331 MB/s 484 MB/s Much faster peak sustained write speed.
+46%
Market Share
Based on 9,145,409 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.63 % Hugely higher market share.
+142%
0.26 %
Value
Value For Money
128 % Much better value.
+47%
86.8 %
User Rating
UBM User Rating
64 % 72 % Slightly more popular.
+12%
Price
Price (score)
$119 Much cheaper.
+52%
$249
Age
Newest
28 Months Much more recent.
+45%
51 Months
DQ Read
Peak 4K-64Thread Read Speed
352 MB/s 387 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 1,279 Pts Slightly stronger server IO.
+11%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
331 MB/s 361 MB/s Slightly faster peak deep queue mixed IO.
+9%
ADQ Read
Avg. 4K-64Thread Read Speed
303 MB/s 347 MB/s Slightly faster deep queue read.
+15%
ADQ Write
Avg. 4K-64Thread Write Speed
275 MB/s 304 MB/s Slightly faster deep queue write.
+11%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
272 MB/s 309 MB/s Slightly faster deep queue mixed IO.
+14%
Capacity
Capacity
525GB 512GB
Solid State Drive Rankings (Price vs Performance) October 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 $380Nvidia GTX 1070 $323Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $350AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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