UserBenchmark: Plextor M5M mSATA vs Samsung 840 Pro

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SamsungMZ-7PD256BW

BUY • $190

PlextorPX-256M5M

BUY • $240

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Real World Speed

Performance profile from 73,535 user samples

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73,119 User Benchmarks

Best Bench: 116% 238GB free
Worst Bench: 68% 11GB free (System drive)

Poor: 68% Great: 116%

SPEED RANK: 279^th / 1072

416 User Benchmarks

Best Bench: 96% 474GB free
Worst Bench: 59% 116GB free (System drive)

Poor: 59% Great: 96%

SPEED RANK: 497^th / 1072


Effective Speed Effective SSD Speed		95 %	Faster effective speed. +20%		79.1 %


Read Avg. Sequential Read Speed	459 MB/s	+1%	455 MB/s
Write Avg. Sequential Write Speed	367 MB/s	+1%	363 MB/s
4K Read Avg. 4K Random Read Speed	31 MB/s	Much faster random read. +30%	23.8 MB/s
4K Write Avg. 4K Random Write Speed	85.6 MB/s	Much faster random write. +76%	48.7 MB/s
Mixed Avg. Sequential Mixed IO Speed	303 MB/s		336 MB/s	Faster mixed IO speed. +11%
4K Mixed Avg. 4K Random Mixed IO Speed	39.5 MB/s	Much faster random mixed IO. +56%	25.3 MB/s
SusWrite Avg. Sustained Write Speed	312 MB/s		338 MB/s	Slightly faster sustained write speed. +8%


Read Peak Sequential Read Speed	510 MB/s	+2%	499 MB/s
Write Peak Sequential Write Speed	480 MB/s	Faster peak write speed. +17%	410 MB/s
4K Read Peak 4K Random Read Speed	36.1 MB/s	Faster peak random read. +15%	31.4 MB/s
4K Write Peak 4K Random Write Speed	114 MB/s	Much faster peak random write. +53%	74.3 MB/s
Mixed Peak Sequential Mixed IO Speed	368 MB/s		445 MB/s	Faster peak mixed IO speed. +21%
4K Mixed Peak 4K Random Mixed IO Speed	47.6 MB/s	Faster peak random mixed IO. +26%	37.7 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	477 MB/s	Faster peak sustained write speed. +27%	376 MB/s

Market Share

Based on 75,665,973 SSDs tested

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Market Share Market Share (trailing 30 days)	0.03 %	Insanely higher market share. +∞%	0 %
Value Value For Money	7.72 %	Much better value. +43%	5.4 %
User Rating UBM User Rating	54 %	+4%	52 %
Price Price (score)	$190	Cheaper. +21%	$240


Age Newest	138 Months		132 Months	+4%
DQ Read Peak 4K-64Thread Read Speed	385 MB/s	Faster peak deep queue read. +26%	306 MB/s
DQ Write Peak 4K-64Thread Write Speed	334 MB/s	Faster peak deep queue write. +11%	301 MB/s
AS-SSD Total AS-SSD Total Score	1,221 Pts	Stronger server IO. +21%	1,008 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	176 MB/s		220 MB/s	Faster peak deep queue mixed IO. +25%
ADQ Read Avg. 4K-64Thread Read Speed	346 MB/s	Much faster deep queue read. +58%	219 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	262 MB/s	Faster deep queue write. +18%	222 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	147 MB/s	Faster deep queue mixed IO. +17%	126 MB/s


Capacity Capacity			256GB			256GB

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. ^{[Jun '13 SSDrivePro]}

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The Plextor M5M is the most recent mSATA SSD I have looked at. It has both the same controller and NAND flash (albeit with fewer channels) as its regular SATA sibling, the excellent M5 Pro. The performance figures for the M5M lag the top nine SATA group leaders by around 30% on average. The weakest area of core performance is shallow queue 4K write speed which clocks in at 57 MBps on the M5M vs a group average of 118 MBps. In terms of server orientated performance, the M5M takes 13th place out of 29 with an AS SSD total score of 946. That said it's only fair to look at the M5M within the context of other mSATA SSDs. It's not a clear cut performance win between the M5M and the Intel 525 Series but the M5M is retailing for 23% less. Unless shallow queue random writes are a top priority for your use case the M5M is the clear value winner, and my top mSATA pick for 2013. ^{[Oct '13 SSDrivePro]}

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Solid State Drive Rankings (Price vs Performance) April 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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CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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