OCZVTX4-25SAT3-512G
SamsungMZ-75E250B

Controller: Indilinx Everest 2 IDX400M00-BC. Flash Memory: Intel Synchronous 25nm MLC. Release date ≤ Q1 2014.

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Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

Real World Speed
Performance profile from 573,629 user samples
1,021 User Benchmarks
Best Bench: 109% 398GB free (System drive)
Worst Bench: 65% 92GB free (System drive)
Poor: 65% Great: 109%
SPEED RANK: 245th / 1017
572,608 User Benchmarks
Best Bench: 122% 87GB free (System drive)
Worst Bench: 74% 135GB free (System drive)
Poor: 74% Great: 122%
SPEED RANK: 195th / 1017
Effective Speed
Effective SSD Speed
93.1 % 103 % Slightly faster effective speed.
+11%
Read
Avg. Sequential Read Speed
377 MB/s 469 MB/s Faster read speed.
+24%
Write
Avg. Sequential Write Speed
400 MB/s 433 MB/s Slightly faster write speed.
+8%
4K Read
Avg. 4K Random Read Speed
27.4 MB/s 40 MB/s Much faster random read.
+46%
4K Write
Avg. 4K Random Write Speed
95.3 MB/s 95.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed
277 MB/s 370 MB/s Much faster mixed IO speed.
+34%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.6 MB/s 52.6 MB/s Much faster random mixed IO.
+48%
SusWrite
Avg. Sustained Write Speed
377 MB/s Much faster sustained write speed.
+56%
242 MB/s
Read
Peak Sequential Read Speed
458 MB/s 506 MB/s Slightly faster peak read speed.
+10%
Write
Peak Sequential Write Speed
468 MB/s 490 MB/s +5%
4K Read
Peak 4K Random Read Speed
34 MB/s 47.6 MB/s Much faster peak random read.
+40%
4K Write
Peak 4K Random Write Speed
138 MB/s Slightly faster peak random write.
+8%
128 MB/s
Mixed
Peak Sequential Mixed IO Speed
336 MB/s 413 MB/s Faster peak mixed IO speed.
+23%
4K Mixed
Peak 4K Random Mixed IO Speed
43.3 MB/s 64.4 MB/s Much faster peak random mixed IO.
+49%
SusWrite
Peak Sequential Sustained Write 60s Average
461 MB/s Much faster peak sustained write speed.
+42%
324 MB/s
Market Share
Based on 23,744,594 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 2.66 % Insanely higher market share.
+26,500%
Value
Value For Money
6.69 % 19.4 % Hugely better value.
+190%
User Rating
UBM User Rating
50 % 70 % Much more popular.
+40%
Price
Price (score)
$448 $61 Hugely cheaper.
+86%
Age
Newest
73+ Months 63 Months Slightly more recent.
+14%
DQ Read
Peak 4K-64Thread Read Speed
352 MB/s 386 MB/s Slightly faster peak deep queue read.
+10%
DQ Write
Peak 4K-64Thread Write Speed
349 MB/s 361 MB/s +3%
AS-SSD Total
AS-SSD Total Score
1199 Pts 1,287 Pts Slightly stronger server IO.
+7%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
335 MB/s 367 MB/s Slightly faster peak deep queue mixed IO.
+10%
ADQ Read
Avg. 4K-64Thread Read Speed
300 MB/s 343 MB/s Slightly faster deep queue read.
+14%
ADQ Write
Avg. 4K-64Thread Write Speed
279 MB/s 302 MB/s Slightly faster deep queue write.
+8%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
268 MB/s 311 MB/s Faster deep queue mixed IO.
+16%
Capacity
Capacity
512GB 250GB
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The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders[Dec '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) March 2020 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 i5-9400F $150Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $210Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $505Samsung 850 Pro 512GB $249
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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