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SamsungMZ-75E250B
PlextorPX-256M5P
▲ 5640,704 ▼

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

VS
▲ 531,508 ▼

Controller: Marvell 88SS9187-BLD2. NAND Memory: Toshiba 19nm Toggle Mode MLC. Release date: Q3 2012.

Effective Speed 
+17%
Real World Speed
Performance profile from 954,042 user samples
Benchmark your SSD here
951,591 User Benchmarks
Best Bench: 124% 140GB free
Worst Bench: 72% 233GB free
Poor: 72% Great: 124%
SPEED RANK: 251st / 1080
2,451 User Benchmarks
Best Bench: 106% 70GB free
Worst Bench: 62% 177GB free
Poor: 62% Great: 106%
SPEED RANK: 364th / 1080
Effective Speed
Effective SSD Speed 		103 % Faster effective speed.
+17% 		88.5 %
Average Score 
+23%
Read
Avg. Sequential Read Speed 		466 MB/s +4% 447 MB/s
Write
Avg. Sequential Write Speed 		434 MB/s Faster write speed.
+15% 		377 MB/s
4K Read
Avg. 4K Random Read Speed 		39.4 MB/s Much faster random read.
+42% 		27.8 MB/s
4K Write
Avg. 4K Random Write Speed 		94.6 MB/s Much faster random write.
+50% 		62.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		370 MB/s Much faster mixed IO speed.
+31% 		283 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		52.2 MB/s Much faster random mixed IO.
+62% 		32.2 MB/s
SusWrite
Avg. Sustained Write Speed 		247 MB/s 361 MB/s Much faster sustained write speed.
+46%
Peak Score 
+23%
Read
Peak Sequential Read Speed 		507 MB/s +2% 499 MB/s
Write
Peak Sequential Write Speed 		492 MB/s Faster peak write speed.
+14% 		432 MB/s
4K Read
Peak 4K Random Read Speed 		47.6 MB/s Much faster peak random read.
+38% 		34.5 MB/s
4K Write
Peak 4K Random Write Speed 		129 MB/s Much faster peak random write.
+45% 		89 MB/s
Mixed
Peak Sequential Mixed IO Speed 		416 MB/s Much faster peak mixed IO speed.
+32% 		314 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		64.6 MB/s Much faster peak random mixed IO.
+56% 		41.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		328 MB/s 423 MB/s Faster peak sustained write speed.
+29%
Value & Sentiment 
+∞%
Market Share
Based on 77,394,946 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.71 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		13.4 % Better value.
+15% 		11.6 %
User Rating
UBM User Rating 		56 % Slightly more popular.
+6% 		53 %
Price
Price (score) 		$100 +0% $100
Nice To Haves 
+27%
Age
Newest 		119 Months More recent.
+18% 		146 Months
DQ Read
Peak 4K-64Thread Read Speed 		386 MB/s +2% 379 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		362 MB/s Slightly faster peak deep queue write.
+8% 		336 MB/s
AS-SSD Total
AS-SSD Total Score 		1,290 Pts Slightly stronger server IO.
+10% 		1,177 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		370 MB/s Much faster peak deep queue mixed IO.
+67% 		222 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s Faster deep queue read.
+15% 		307 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		308 MB/s Faster deep queue write.
+17% 		263 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		320 MB/s Much faster deep queue mixed IO.
+79% 		179 MB/s
Specifications 
Capacity
Capacity 		250GB 256GB
Conclusion 
Average Bench 103%
Average Bench 88.5%

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 Plextor M5 delivers fantastic value for money and sits within easy reach of the top handful of SSD's currently available. The M5's performance favours server type workloads where it takes joint fourth position in the AS-SSD total score benchmark. With a Real World Speed Index of 524.5 it will also cope very well with consumer workloads. Aside from its blistering performance we also like the fact that this drive uses the latest Marvell controller which hasn't suffered any of the reliability issues that plagued some of the early Sandforce based drives. When this drive first hit the shelves in September '12 it was overpriced but since then prices have dropped by nearly 40% making it currently one of top five value for money drives available. [Jun '13 SSDrivePro]

MORE DETAILS

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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.
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 Frequently Asked Questions

Storage Devices FAQ
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Solid State Drives
What is the SSD value for money rating?
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The Best
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Intel Core i5-12600K $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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