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WDWDS400T2X0E
SamsungMZ-76P256BW
▲ 72554 ▼

Release date: Q3 2022.

VS
▲ 52216 ▼

Controller: Samsung MJX. Memory: Samsung 64 layer MLC V-NAND. Release date: Q1 2018.

Effective Speed 
+378%
Real World Speed
Performance profile from 21,337 user samples
Benchmark your SSD here
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
12,565 User Benchmarks
Best Bench: 131% 228GB free
Worst Bench: 78% 69GB free (System drive)
Poor: 78% Great: 131%
SPEED RANK: 228th / 1080
Effective Speed
Effective SSD Speed 		522 % Hugely faster effective speed.
+378% 		109 %
Average Score 
+454%
Read
Avg. Sequential Read Speed 		3,793 MB/s Hugely faster read speed.
+700% 		474 MB/s
Write
Avg. Sequential Write Speed 		3,816 MB/s Hugely faster write speed.
+811% 		419 MB/s
4K Read
Avg. 4K Random Read Speed 		67.2 MB/s Much faster random read.
+78% 		37.7 MB/s
4K Write
Avg. 4K Random Write Speed 		189 MB/s Hugely faster random write.
+103% 		93.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		2,970 MB/s Hugely faster mixed IO speed.
+646% 		398 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		83.5 MB/s Much faster random mixed IO.
+73% 		48.3 MB/s
SusWrite
Avg. Sustained Write Speed 		3,370 MB/s Hugely faster sustained write speed.
+769% 		388 MB/s
Peak Score 
+514%
Read
Peak Sequential Read Speed 		4,696 MB/s Hugely faster peak read speed.
+812% 		515 MB/s
Write
Peak Sequential Write Speed 		4,940 MB/s Hugely faster peak write speed.
+912% 		488 MB/s
4K Read
Peak 4K Random Read Speed 		84.7 MB/s Hugely faster peak random read.
+85% 		45.9 MB/s
4K Write
Peak 4K Random Write Speed 		315 MB/s Hugely faster peak random write.
+146% 		128 MB/s
Mixed
Peak Sequential Mixed IO Speed 		3,586 MB/s Hugely faster peak mixed IO speed.
+700% 		448 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		113 MB/s Hugely faster peak random mixed IO.
+85% 		61 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		4,656 MB/s Hugely faster peak sustained write speed.
+856% 		487 MB/s
Value & Sentiment 
+686%
Market Share
Based on 77,480,531 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.26 % Insanely higher market share.
+1,200% 		0.02 %
Value
Value For Money 		260 % Insanely better value.
+1,573% 		15.5 %
User Rating
UBM User Rating 		72 % Much more popular.
+38% 		52 %
Price
Price (score) 		$265 $90 Much cheaper.
+66%
Nice To Haves 
+409%
Age
Newest 		27 Months Much more recent.
+67% 		81 Months
DQ Read
Peak 4K-64Thread Read Speed 		2,486 MB/s Hugely faster peak deep queue read.
+539% 		389 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		2,073 MB/s Hugely faster peak deep queue write.
+474% 		361 MB/s
AS-SSD Total
AS-SSD Total Score 		7,497 Pts Hugely stronger server IO.
+482% 		1,289 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		2,284 MB/s Hugely faster peak deep queue mixed IO.
+522% 		367 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		1,787 MB/s Hugely faster deep queue read.
+421% 		343 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		1,382 MB/s Hugely faster deep queue write.
+367% 		296 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		1,548 MB/s Hugely faster deep queue mixed IO.
+401% 		309 MB/s
Specifications 
Capacity
Capacity 		4TB 256GB
Conclusion 
Average Bench 522%
Average Bench 109%

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 860 Pro is Samsung’s latest consumer-grade SATA SSD flagship, superseding the popular, but now three years old, 850 Pro. Like the 850 Pro, the 860 Pro is based on Samsung’s proprietary and revolutionary (at the time), MLC V-NAND (3D). A 10% price premium over the 256 GB 850 Pro will purchase the 256 GB 860 Pro which has an impressive 16% faster effective speed. This is achieved via an updated controller (MJX) and 64 layers of V-NAND (versus 32 layers per the 850 Pro). The 860 Pro has sequential speeds of up to 540 MB/s which almost completely saturate its SATA 3.0 interface. These peak levels of performance are slightly higher, but still comparable to the peak performance of the 860 Evo before its SLC write cache (12 GB on the 250 GB Evo) is saturated, making the 860 Evo (at around 30% cheaper) a more economical choice for users who rarely write more than 12 GB at a time. There are also reliability improvements compared to the 850 generation with Samsung now offering a warranty of 300 TBW (terabytes written) for the 256 GB 860 Pro, compared to 150 TBW for the 256 GB 850 Pro. Thanks to higher density NAND, the 860 Pro is also available in a 4 TB variant, whereas previously 2 TB was the largest capacity for a Samsung SATA MLC SSD.  [Feb '18 SSDrivePro]

MORE DETAILS

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12,565
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Solid State Drive Rankings (Price vs Performance) November 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]

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.
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Welcome to our 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 value for money upgrades.

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 Frequently Asked Questions

Storage Devices FAQ
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Solid State Drives
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $296WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $84
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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