SamsungMZ-75E250B
CrucialCT256M4SSD2
$218

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

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About
 $218 

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

Real World Speed
Performance profile from 507,916 user samples
497,964 User Benchmarks
Best Bench: 124% 699GB free
Worst Bench: 73% 194GB free
Poor: 73% Great: 124%
SPEED RANK: 185th / 1011
9,952 User Benchmarks
Best Bench: 75% 146GB free
Worst Bench: 44% 41GB free (System drive)
Poor: 44% Great: 75%
SPEED RANK: 719th / 1011
Effective Speed
Effective SSD Speed
106 % Much faster effective speed.
+73%
61 %
Read
Avg. Sequential Read Speed
474 MB/s Slightly faster read speed.
+10%
431 MB/s
Write
Avg. Sequential Write Speed
443 MB/s Hugely faster write speed.
+84%
241 MB/s
4K Read
Avg. 4K Random Read Speed
40.5 MB/s Hugely faster random read.
+102%
20 MB/s
4K Write
Avg. 4K Random Write Speed
100 MB/s Much faster random write.
+34%
74.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed
375 MB/s Much faster mixed IO speed.
+51%
249 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
54.2 MB/s Hugely faster random mixed IO.
+271%
14.6 MB/s
SusWrite
Avg. Sustained Write Speed
251 MB/s Faster sustained write speed.
+26%
199 MB/s
Read
Peak Sequential Read Speed
508 MB/s +3% 492 MB/s
Write
Peak Sequential Write Speed
493 MB/s Hugely faster peak write speed.
+85%
267 MB/s
4K Read
Peak 4K Random Read Speed
48.3 MB/s Hugely faster peak random read.
+106%
23.5 MB/s
4K Write
Peak 4K Random Write Speed
133 MB/s Faster peak random write.
+25%
106 MB/s
Mixed
Peak Sequential Mixed IO Speed
414 MB/s Much faster peak mixed IO speed.
+51%
274 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
65.9 MB/s Hugely faster peak random mixed IO.
+240%
19.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
325 MB/s Faster peak sustained write speed.
+23%
264 MB/s
Market Share
Based on 18,503,312 SSDs tested.
Market Share
Market Share (trailing 30 days)
2.68 % Insanely higher market share.
+5,260%
0.05 %
Value
Value For Money
17.4 % Hugely better value.
+287%
4.48 %
User Rating
UBM User Rating
125 % Hugely more popular.
+123%
56 %
Price
Price (score)
$73 Much cheaper.
+67%
$218
Age
Newest
58 Months Much more recent.
+43%
102 Months
DQ Read
Peak 4K-64Thread Read Speed
386 MB/s Hugely faster peak deep queue read.
+110%
184 MB/s
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s Much faster peak deep queue write.
+52%
237 MB/s
AS-SSD Total
AS-SSD Total Score
1,294 Pts Much stronger server IO.
+71%
755 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
368 MB/s Insanely faster peak deep queue mixed IO.
+1,015%
33 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
340 MB/s Hugely faster deep queue read.
+166%
128 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
309 MB/s Hugely faster deep queue write.
+127%
136 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
317 MB/s Insanely faster deep queue mixed IO.
+1,238%
23.7 MB/s
Capacity
Capacity
250GB 256GB
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The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders[Dec '14 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) October 2019 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 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660 $210Samsung 850 Evo 250GB $73
Intel Core i5-9600K $240Nvidia RTX 2060 $349Samsung 850 Evo 500GB $107
Intel Core i7-9700K $350Nvidia GTX 1660-Ti $270Samsung 850 Pro 256GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
Seagate Barracuda 3TB (2016) $78G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $70SanDisk Ultra Fit 32GB $14
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