SamsungMZ-77E4T0B
CrucialCT256M4SSD2
$218

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

 $218 

Controller: Marvell 88SS9174-BLD2. Flash Memory: Micron Synchronous 25nm MLC. Release date: Q2 2011.

Real World Speed
Performance profile from 27,392 user samples
9,454 User Benchmarks
Best Bench: 137% 3.5TB free
Worst Bench: 90% 1.5TB free
Poor: 90% Great: 137%
SPEED RANK: 197th / 1074
17,938 User Benchmarks
Best Bench: 74% 168GB free
Worst Bench: 43% 72GB free (System drive)
Poor: 43% Great: 74%
SPEED RANK: 798th / 1074
Effective Speed
Effective SSD Speed
117 % Hugely faster effective speed.
+92%
60.8 %
Read
Avg. Sequential Read Speed
481 MB/s Faster read speed.
+11%
432 MB/s
Write
Avg. Sequential Write Speed
451 MB/s Hugely faster write speed.
+88%
240 MB/s
4K Read
Avg. 4K Random Read Speed
40.5 MB/s Hugely faster random read.
+104%
19.9 MB/s
4K Write
Avg. 4K Random Write Speed
90 MB/s Faster random write.
+21%
74.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
426 MB/s Much faster mixed IO speed.
+70%
250 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
53.6 MB/s Hugely faster random mixed IO.
+267%
14.6 MB/s
SusWrite
Avg. Sustained Write Speed
445 MB/s Hugely faster sustained write speed.
+128%
195 MB/s
Read
Peak Sequential Read Speed
517 MB/s +5% 494 MB/s
Write
Peak Sequential Write Speed
491 MB/s Hugely faster peak write speed.
+83%
268 MB/s
4K Read
Peak 4K Random Read Speed
48.8 MB/s Hugely faster peak random read.
+109%
23.4 MB/s
4K Write
Peak 4K Random Write Speed
131 MB/s Faster peak random write.
+24%
106 MB/s
Mixed
Peak Sequential Mixed IO Speed
464 MB/s Much faster peak mixed IO speed.
+70%
273 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
68.1 MB/s Hugely faster peak random mixed IO.
+260%
18.9 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
489 MB/s Hugely faster peak sustained write speed.
+85%
265 MB/s
Market Share
Based on 75,944,963 SSDs tested
Market Share
Market Share (trailing 30 days)
0.04 % Hugely higher market share.
+100%
0.02 %
Value
Value For Money
45 % Hugely better value.
+909%
4.46 %
User Rating
UBM User Rating
51 % 52 % +2%
Price
Price (score)
$372 $218 Much cheaper.
+41%
Age
Newest
39+ Months Much more recent.
+75%
157 Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s Hugely faster peak deep queue read.
+111%
184 MB/s
DQ Write
Peak 4K-64Thread Write Speed
364 MB/s Much faster peak deep queue write.
+56%
234 MB/s
AS-SSD Total
AS-SSD Total Score
1,301 Pts Much stronger server IO.
+73%
752 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
374 MB/s Insanely faster peak deep queue mixed IO.
+1,030%
33.1 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
354 MB/s Hugely faster deep queue read.
+166%
133 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
305 MB/s Hugely faster deep queue write.
+124%
136 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
324 MB/s Insanely faster deep queue mixed IO.
+1,267%
23.7 MB/s
Capacity
Capacity
4TB 256GB
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There are high failure rates for the 4TB version of this drive. After moderate use the drive can develop bad sectors which block file reads. Scandisk does not detect the errors and the data blocks are not recoverable. There are widespread reports of this problem but Samsung have yet to issue a statement. [Jul '23 SSDrivePro]

MORE DETAILS

The Crucial M4 is one of the oldest SSD's to have made it into the group test. When it was released its primary competitors were Sandforce based drives which suffered from two major problems: reliability and weak incompressible data performance. As a result this drive was one of the top drives of its time. That was back in Apr '11. Today the M4 is no longer able to compete and scores below average (377.9 MB/s) on the Real World Speed Index benchmark and way below average (676) on the deep queue depth orientated AS-SSD Total score benchmark. Of course these figures are still far faster than any mechanical hard drive and owners of this drive should feel in no hurry to upgrade. People looking to make a new purchase will find much better value elsewhere. [Apr '13 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) May 2024 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 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.

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 i5-12600K $171Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-13600K $273Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i3-12100F $80Nvidia RTX 4070 $500Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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