WDWDS250G1B0A
SamsungMZ-77E4T0B

Release date ≈ Q4 2016.

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

Real World Speed
Performance profile from 22,821 user samples
22,308 User Benchmarks
Best Bench: 101% 119GB free
Worst Bench: 57% 143GB free (System drive)
Poor: 57% Great: 101%
SPEED RANK: 459th / 1058
513 User Benchmarks
Best Bench: 137% 3.5TB free
Worst Bench: 94% 3.5TB free
Poor: 94% Great: 137%
SPEED RANK: 183rd / 1058
Effective Speed
Effective SSD Speed
80.8 % 118 % Much faster effective speed.
+46%
Read
Avg. Sequential Read Speed
442 MB/s 491 MB/s Faster read speed.
+11%
Write
Avg. Sequential Write Speed
343 MB/s 448 MB/s Much faster write speed.
+31%
4K Read
Avg. 4K Random Read Speed
30.5 MB/s 42.6 MB/s Much faster random read.
+40%
4K Write
Avg. 4K Random Write Speed
73.1 MB/s 92.9 MB/s Faster random write.
+27%
Mixed
Avg. Sequential Mixed IO Speed
251 MB/s 429 MB/s Much faster mixed IO speed.
+71%
4K Mixed
Avg. 4K Random Mixed IO Speed
36.7 MB/s 56.4 MB/s Much faster random mixed IO.
+54%
SusWrite
Avg. Sustained Write Speed
161 MB/s 445 MB/s Hugely faster sustained write speed.
+176%
Read
Peak Sequential Read Speed
502 MB/s 518 MB/s +3%
Write
Peak Sequential Write Speed
477 MB/s 493 MB/s +3%
4K Read
Peak 4K Random Read Speed
40.6 MB/s 49.3 MB/s Faster peak random read.
+21%
4K Write
Peak 4K Random Write Speed
116 MB/s 126 MB/s Slightly faster peak random write.
+9%
Mixed
Peak Sequential Mixed IO Speed
350 MB/s 463 MB/s Much faster peak mixed IO speed.
+32%
4K Mixed
Peak 4K Random Mixed IO Speed
51.9 MB/s 68.9 MB/s Much faster peak random mixed IO.
+33%
SusWrite
Peak Sequential Sustained Write 60s Average
225 MB/s 493 MB/s Hugely faster peak sustained write speed.
+119%
Market Share
Based on 47,073,847 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.04 % Hugely higher market share.
+300%
0.01 %
Value
Value For Money
11.3 % 34.9 % Hugely better value.
+208%
User Rating
UBM User Rating
51 % +2% 50 %
Price
Price (score)
$90 Hugely cheaper.
+83%
$529
Age
Newest
58+ Months 7+ Months Hugely more recent.
+88%
DQ Read
Peak 4K-64Thread Read Speed
383 MB/s 388 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
305 MB/s 362 MB/s Faster peak deep queue write.
+19%
AS-SSD Total
AS-SSD Total Score
1,198 Pts 1,294 Pts Slightly stronger server IO.
+8%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
255 MB/s 373 MB/s Much faster peak deep queue mixed IO.
+46%
ADQ Read
Avg. 4K-64Thread Read Speed
323 MB/s Slightly faster deep queue read.
+5%
307 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
244 MB/s 265 MB/s Slightly faster deep queue write.
+9%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
218 MB/s 281 MB/s Faster deep queue mixed IO.
+29%
Capacity
Capacity
250GB 4TB
Solid State Drive Rankings (Price vs Performance) September 2021 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]

ADVERTISEMENT

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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $44
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback