CrucialCT525MX300SSD1
SamsungMZ-7KE512BW

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC.

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

Real World Speed
Performance profile from 25,389 user samples
11,529 User Benchmarks
Best Bench: 87% 435GB free
Worst Bench: 53% 77GB free
Poor: 53% Great: 87%
SPEED RANK: 290th / 860
13,860 User Benchmarks
Best Bench: 124% 163GB free
Worst Bench: 69% 272GB free
Poor: 69% Great: 124%
SPEED RANK: 57th / 860
Effective Speed
Effective SSD Speed
72 % -40% 101 % Much faster effective speed.
+40%
Read
Avg. Sequential Read Speed
466 MB/s -8% 504 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed
314 MB/s -43% 448 MB/s Much faster write speed.
+43%
4K Read
Avg. 4K Random Read Speed
23.2 MB/s -41% 32.7 MB/s Much faster random read.
+41%
4K Write
Avg. 4K Random Write Speed
61 MB/s -43% 87 MB/s Much faster random write.
+43%
Mixed
Avg. Sequential Mixed IO Speed
323 MB/s -46% 470 MB/s Much faster mixed IO speed.
+46%
4K Mixed
Avg. 4K Random Mixed IO Speed
18.8 MB/s -93% 36.3 MB/s Hugely faster random mixed IO.
+93%
Read
Peak Sequential Read Speed
486 MB/s -9% 528 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed
343 MB/s -46% 502 MB/s Much faster peak write speed.
+46%
4K Read
Peak 4K Random Read Speed
28 MB/s -51% 42.3 MB/s Much faster peak random read.
+51%
4K Write
Peak 4K Random Write Speed
86.2 MB/s -45% 125 MB/s Much faster peak random write.
+45%
Mixed
Peak Sequential Mixed IO Speed
341 MB/s -51% 515 MB/s Much faster peak mixed IO speed.
+51%
4K Mixed
Peak 4K Random Mixed IO Speed
26.7 MB/s -102% 54 MB/s Hugely faster peak random mixed IO.
+102%
Market Share
Based on 4,111,554 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.73 % Hugely higher market share.
+630%
0.1 % -630%
Value
Value For Money
89.4 % -10% 98.6 % Slightly better value.
+10%
User Rating
UBM User Rating
62 % -18% 73 % More popular.
+18%
Price
Price (score)
$149 Cheaper.
+25%
$200 -25%
Age
Newest
16 Months Much more recent.
+59%
39 Months -59%
DQ Read
Peak 4K-64Thread Read Speed
340 MB/s -12% 382 MB/s Slightly faster peak deep queue read.
+12%
DQ Write
Peak 4K-64Thread Write Speed
227 MB/s -50% 340 MB/s Much faster peak deep queue write.
+50%
AS-SSD Total
AS-SSD Total Score
979 Pts -28% 1,251 Pts Stronger server IO.
+28%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
47.4 MB/s -259% 170 MB/s Hugely faster peak deep queue mixed IO.
+259%
ADQ Read
Avg. 4K-64Thread Read Speed
172 MB/s -28% 221 MB/s Faster deep queue read.
+28%
ADQ Write
Avg. 4K-64Thread Write Speed
143 MB/s -59% 228 MB/s Much faster deep queue write.
+59%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
30.8 MB/s -213% 96.4 MB/s Hugely faster deep queue mixed IO.
+213%
Capacity
Capacity
525GB 512GB
Solid State Drive Rankings (Price vs Performance) October 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $300Nvidia GTX 1070 $380Samsung 850 Evo 250GB $98
AMD Ryzen 7 1700 $280AMD RX 480 $491Samsung 850 Pro 256GB $120
Intel Core i5-7600K $220Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $159
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $163SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $842SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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