WDWDS400T2X0E
WDWDS100T2X0E

Release date: Q3 2022.

Release date: Q3 2022.

Real World Speed
Performance profile from 46,744 user samples
8,772 User Benchmarks
Great bench: 683% 3.5TB free
Poor bench: 288% 2.5TB free (System drive)
Poor: 288% Great: 683%
SPEED RANK: 7th / 1080
37,972 User Benchmarks
Great bench: 615% 733GB free (System drive)
Poor bench: 256% 183GB free
Poor: 256% Great: 615%
SPEED RANK: 12th / 1080
Effective Speed
Effective SSD Speed
522 % Faster effective speed.
+18%
443 %
Read
Avg. Sequential Read Speed
3793 MB/s +2% 3711 MB/s
Write
Avg. Sequential Write Speed
3816 MB/s +1% 3769 MB/s
4K Read
Avg. 4K Random Read Speed
67.2 MB/s 68.6 MB/s +2%
4K Write
Avg. 4K Random Write Speed
189 MB/s +3% 184 MB/s
Mixed
Avg. Sequential Mixed IO Speed
2970 MB/s +5% 2835 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
83.5 MB/s +1% 82.8 MB/s
SusWrite
Avg. Sustained Write Speed
3370 MB/s Much faster sustained write speed.
+57%
2152 MB/s
Read
Peak Sequential Read Speed
4696 MB/s +1% 4629 MB/s
Write
Peak Sequential Write Speed
4940 MB/s 4976 MB/s +1%
4K Read
Peak 4K Random Read Speed
84.7 MB/s 85.4 MB/s +1%
4K Write
Peak 4K Random Write Speed
315 MB/s +0% 314 MB/s
Mixed
Peak Sequential Mixed IO Speed
3586 MB/s Slightly faster peak mixed IO speed.
+5%
3409 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
113 MB/s 113 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
4656 MB/s Faster peak sustained write speed.
+14%
4096 MB/s
Market Share
Based on 76,391,292 SSDs tested
Market Share
Market Share (trailing 30 days)
0.23 % 0.51 % Hugely higher market share.
+122%
Value
Value For Money
241 % Much better value.
+38%
175 %
User Rating
UBM User Rating
72 % 74 % +3%
Price
Price (score)
$293 $90 Much cheaper.
+69%
Age
Newest
23 Months 23 Months
DQ Read
Peak 4K-64Thread Read Speed
2486 MB/s +2% 2433 MB/s
DQ Write
Peak 4K-64Thread Write Speed
2073 MB/s +1% 2047 MB/s
AS-SSD Total
AS-SSD Total Score
7497 Pts +1% 7,391 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
2284 MB/s +1% 2253 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
1787 MB/s +3% 1741 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
1382 MB/s +1% 1362 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
1548 MB/s +2% 1519 MB/s
Capacity
Capacity
4TB 1TB
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The WD Black SN850X has a superb consumer performance profile. As well as offering solid burst speeds of 5 GB/s, the SN850X also offers respectable out of cache performance. At current prices (1TB $90 USD, 2TB $145 USD and 4TB $290 USD) the WD Black SN850X is our top value pick at every capacity. [Jun '24 SSDrivePro]

MORE DETAILS

The WD Black SN850X has a superb consumer performance profile. As well as offering solid burst speeds of 5 GB/s, the SN850X also offers respectable out of cache performance. At current prices (1TB $90 USD, 2TB $145 USD and 4TB $290 USD) the WD Black SN850X is our top value pick at every capacity. [Jun '24 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 2024 SSD Rankings

Welcome to our 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.
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The Best
CPUGPUSSD
Intel Core i5-12600K $165Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $119
Intel Core i5-13600K $248Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $90
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $418
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