SamsungMZ-7KE512BW
CrucialCT525MX300SSD1

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

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

Real World Speed
Performance profile from 23,425 user samples
12,265 User Benchmarks
Best Bench: 127% 255GB free
Worst Bench: 73% 140GB free
Poor: 73% Great: 127%
SPEED RANK: 55th / 859
11,160 User Benchmarks
Best Bench: 87% 175GB free
Worst Bench: 53% 71GB free
Poor: 53% Great: 87%
SPEED RANK: 297th / 859
Effective Speed
Effective SSD Speed
102 % Much faster effective speed.
+43%
71.7 % -43%
Read
Avg. Sequential Read Speed
506 MB/s Slightly faster read speed.
+9%
464 MB/s -9%
Write
Avg. Sequential Write Speed
445 MB/s Much faster write speed.
+42%
314 MB/s -42%
4K Read
Avg. 4K Random Read Speed
33 MB/s Much faster random read.
+43%
23.1 MB/s -43%
4K Write
Avg. 4K Random Write Speed
89.4 MB/s Much faster random write.
+47%
60.9 MB/s -47%
Mixed
Avg. Sequential Mixed IO Speed
465 MB/s Much faster mixed IO speed.
+45%
321 MB/s -45%
4K Mixed
Avg. 4K Random Mixed IO Speed
37.9 MB/s Hugely faster random mixed IO.
+103%
18.7 MB/s -103%
Read
Peak Sequential Read Speed
528 MB/s Slightly faster peak read speed.
+9%
486 MB/s -9%
Write
Peak Sequential Write Speed
503 MB/s Much faster peak write speed.
+48%
341 MB/s -48%
4K Read
Peak 4K Random Read Speed
44.2 MB/s Much faster peak random read.
+59%
27.8 MB/s -59%
4K Write
Peak 4K Random Write Speed
130 MB/s Much faster peak random write.
+49%
87.2 MB/s -49%
Mixed
Peak Sequential Mixed IO Speed
515 MB/s Much faster peak mixed IO speed.
+51%
341 MB/s -51%
4K Mixed
Peak 4K Random Mixed IO Speed
56.9 MB/s Hugely faster peak random mixed IO.
+115%
26.5 MB/s -115%
Market Share
Based on 3,862,811 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.72 % -33% 0.96 % Much higher market share.
+33%
Value
Value For Money
106 % Slightly better value.
+14%
92.9 % -14%
User Rating
UBM User Rating
73 % More popular.
+20%
61 % -20%
Price
Price (score)
$185 -24% $141 Cheaper.
+24%
Age
Newest
38 Months -61% 15 Months Much more recent.
+61%
DQ Read
Peak 4K-64Thread Read Speed
383 MB/s Slightly faster peak deep queue read.
+13%
338 MB/s -13%
DQ Write
Peak 4K-64Thread Write Speed
343 MB/s Much faster peak deep queue write.
+52%
225 MB/s -52%
AS-SSD Total
AS-SSD Total Score
1,264 Pts Stronger server IO.
+30%
975 Pts -30%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
171 MB/s Hugely faster peak deep queue mixed IO.
+262%
47.3 MB/s -262%
ADQ Read
Avg. 4K-64Thread Read Speed
230 MB/s Much faster deep queue read.
+40%
164 MB/s -40%
ADQ Write
Avg. 4K-64Thread Write Speed
232 MB/s Much faster deep queue write.
+61%
144 MB/s -61%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
105 MB/s Hugely faster deep queue mixed IO.
+245%
30.4 MB/s -245%
Capacity
Capacity
512GB 525GB
Solid State Drive Rankings (Price vs Performance) September 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 $295Nvidia GTX 1070 $400Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $120
Intel Core i5-7600K $210Nvidia GTX 1060-6GB $263Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback