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SamsungMZ-77E250B
WDWDS250G2B0A
▲ 57216 ▼

Controller: Samsung MKX. Memory: Samsung 128 layer TLC V-NAND. Release date: Q1 2021.

VS
▲ 51150 ▼

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

Effective Speed 
+18%
Real World Speed
Performance profile from 37,740 user samples
Benchmark your SSD here
14,082 User Benchmarks
Best Bench: 128% 0GB free
Worst Bench: 67% 59GB free (System drive)
Poor: 67% Great: 128%
SPEED RANK: 259th / 1079
23,658 User Benchmarks
Best Bench: 105% 192GB free
Worst Bench: 62% 170GB free (System drive)
Poor: 62% Great: 105%
SPEED RANK: 398th / 1079
Effective Speed
Effective SSD Speed 		101 % Faster effective speed.
+18% 		86 %
Average Score 
+26%
Read
Avg. Sequential Read Speed 		461 MB/s +1% 456 MB/s
Write
Avg. Sequential Write Speed 		395 MB/s Faster write speed.
+16% 		340 MB/s
4K Read
Avg. 4K Random Read Speed 		36.4 MB/s Faster random read.
+13% 		32.1 MB/s
4K Write
Avg. 4K Random Write Speed 		81.9 MB/s +3% 79.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		365 MB/s Much faster mixed IO speed.
+50% 		243 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		45.9 MB/s Faster random mixed IO.
+18% 		38.8 MB/s
SusWrite
Avg. Sustained Write Speed 		322 MB/s Much faster sustained write speed.
+78% 		181 MB/s
Peak Score 
+24%
Read
Peak Sequential Read Speed 		514 MB/s +0% 512 MB/s
Write
Peak Sequential Write Speed 		486 MB/s +1% 481 MB/s
4K Read
Peak 4K Random Read Speed 		49.1 MB/s Faster peak random read.
+21% 		40.7 MB/s
4K Write
Peak 4K Random Write Speed 		123 MB/s Slightly faster peak random write.
+5% 		117 MB/s
Mixed
Peak Sequential Mixed IO Speed 		457 MB/s Much faster peak mixed IO speed.
+35% 		339 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		66.1 MB/s Faster peak random mixed IO.
+27% 		52.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		396 MB/s Much faster peak sustained write speed.
+78% 		223 MB/s
Value & Sentiment 
+78%
Market Share
Based on 76,166,104 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.11 % Hugely higher market share.
+267% 		0.03 %
Value
Value For Money 		22.7 % Better value.
+25% 		18.2 %
User Rating
UBM User Rating 		57 % More popular.
+12% 		51 %
Price
Price (score) 		$48 Slightly cheaper.
+8% 		$52
Nice To Haves 
+17%
Age
Newest 		40 Months Much more recent.
+52% 		83 Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s +2% 380 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		362 MB/s Faster peak deep queue write.
+10% 		328 MB/s
AS-SSD Total
AS-SSD Total Score 		1291 Pts Slightly stronger server IO.
+6% 		1,220 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		372 MB/s Much faster peak deep queue mixed IO.
+32% 		282 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		349 MB/s +1% 345 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		299 MB/s Faster deep queue write.
+15% 		261 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		280 MB/s Faster deep queue mixed IO.
+20% 		234 MB/s
Specifications 
Capacity
Capacity 		250GB 250GB
User Builds 
14,082
23,658
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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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  • 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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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
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
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The Best
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Intel Core i5-12400F $110Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $89
Intel Core i5-13600K $249Nvidia RTX 4070 $549Crucial T700 M.2 4TB $369
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