WDWDS250G2B0A
KingstonSA400S37/240G

Controller: Marvell 88SS1074. Memory: SanDisk 3D TLC. Release date: Q3 2017.

Controller: Phison PS3111-S11. Flash Memory: Toshiba 15nm TLC. Release date: Q1 2017.

Real World Speed
Performance profile from 170,968 user samples
13,556 User Benchmarks
Best Bench: 105% 159GB free
Worst Bench: 60% 42GB free (System drive)
Poor: 60% Great: 105%
SPEED RANK: 331st / 1026
157,412 User Benchmarks
Best Bench: 95% 156GB free (System drive)
Worst Bench: 37% 90GB free (System drive)
Poor: 37% Great: 95%
SPEED RANK: 711th / 1026
Effective Speed
Effective SSD Speed
86.5 % Much faster effective speed.
+36%
63.6 %
Read
Avg. Sequential Read Speed
460 MB/s Slightly faster read speed.
+9%
422 MB/s
Write
Avg. Sequential Write Speed
354 MB/s Faster write speed.
+15%
309 MB/s
4K Read
Avg. 4K Random Read Speed
32.4 MB/s Faster random read.
+20%
26.9 MB/s
4K Write
Avg. 4K Random Write Speed
78.7 MB/s Much faster random write.
+39%
56.7 MB/s
Mixed
Avg. Sequential Mixed IO Speed
247 MB/s 262 MB/s Slightly faster mixed IO speed.
+6%
4K Mixed
Avg. 4K Random Mixed IO Speed
39.3 MB/s Much faster random mixed IO.
+79%
21.9 MB/s
SusWrite
Avg. Sustained Write Speed
187 MB/s Faster sustained write speed.
+28%
146 MB/s
Read
Peak Sequential Read Speed
513 MB/s +1% 510 MB/s
Write
Peak Sequential Write Speed
486 MB/s Slightly faster peak write speed.
+8%
449 MB/s
4K Read
Peak 4K Random Read Speed
41.2 MB/s Faster peak random read.
+14%
36.2 MB/s
4K Write
Peak 4K Random Write Speed
118 MB/s Faster peak random write.
+12%
105 MB/s
Mixed
Peak Sequential Mixed IO Speed
345 MB/s 422 MB/s Faster peak mixed IO speed.
+22%
4K Mixed
Peak 4K Random Mixed IO Speed
52.4 MB/s Faster peak random mixed IO.
+26%
41.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
225 MB/s 388 MB/s Much faster peak sustained write speed.
+72%
Market Share
Based on 29,454,821 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.08 % 2.71 % Insanely higher market share.
+3,288%
Value
Value For Money
20.4 % Slightly better value.
+8%
18.8 %
User Rating
UBM User Rating
55 % 59 % Slightly more popular.
+7%
Price
Price (score)
$45 $32 Cheaper.
+29%
Age
Newest
37 Months More recent.
+14%
43 Months
DQ Read
Peak 4K-64Thread Read Speed
381 MB/s Much faster peak deep queue read.
+41%
270 MB/s
DQ Write
Peak 4K-64Thread Write Speed
328 MB/s 344 MB/s +5%
AS-SSD Total
AS-SSD Total Score
1,224 Pts Stronger server IO.
+17%
1,045 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
281 MB/s Much faster peak deep queue mixed IO.
+36%
207 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
336 MB/s Much faster deep queue read.
+79%
188 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
255 MB/s Faster deep queue write.
+28%
199 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
230 MB/s Hugely faster deep queue mixed IO.
+165%
86.9 MB/s
Capacity
Capacity
250GB 240GB
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could have used some DRAM, stutters when booting. [Dec '19 ExecutableFiles]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) August 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 i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $156Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $322Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $48
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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