UserBenchmark: Plextor M5M mSATA vs SanDisk Extreme Pro

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PlextorPX-256M5M

BUY • $240

SanDiskSDSSDXPS-240G

BUY • $79

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Real World Speed

Performance profile from 11,278 user samples

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416 User Benchmarks

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

Poor: 59% Great: 96%

SPEED RANK: 497^th / 1072

10,862 User Benchmarks

Best Bench: 114% 83GB free (System drive)
Worst Bench: 65% 20GB free (System drive)

Poor: 65% Great: 114%

SPEED RANK: 308^th / 1072


Effective Speed Effective SSD Speed		79.1 %			91.7 %	Faster effective speed. +16%


Read Avg. Sequential Read Speed	455 MB/s		455 MB/s
Write Avg. Sequential Write Speed	363 MB/s		406 MB/s	Faster write speed. +12%
4K Read Avg. 4K Random Read Speed	23.8 MB/s		28.9 MB/s	Faster random read. +21%
4K Write Avg. 4K Random Write Speed	48.7 MB/s		76.5 MB/s	Much faster random write. +57%
Mixed Avg. Sequential Mixed IO Speed	336 MB/s	Much faster mixed IO speed. +30%	258 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	25.3 MB/s		33.4 MB/s	Much faster random mixed IO. +32%
SusWrite Avg. Sustained Write Speed	338 MB/s		350 MB/s	+4%


Read Peak Sequential Read Speed	499 MB/s		509 MB/s	+2%
Write Peak Sequential Write Speed	410 MB/s		479 MB/s	Faster peak write speed. +17%
4K Read Peak 4K Random Read Speed	31.4 MB/s		35.6 MB/s	Faster peak random read. +13%
4K Write Peak 4K Random Write Speed	74.3 MB/s		113 MB/s	Much faster peak random write. +52%
Mixed Peak Sequential Mixed IO Speed	445 MB/s	Much faster peak mixed IO speed. +41%	316 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	37.7 MB/s		42.4 MB/s	Faster peak random mixed IO. +12%
SusWrite Peak Sequential Sustained Write 60s Average	376 MB/s		480 MB/s	Faster peak sustained write speed. +28%

Market Share

Based on 75,650,495 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %	0 %
Value Value For Money	5.4 %	13.7 %	Hugely better value. +154%
User Rating UBM User Rating	52 %	54 %	+4%
Price Price (score)	$240	$79	Much cheaper. +67%


Age Newest	132 Months		118 Months	More recent. +11%
DQ Read Peak 4K-64Thread Read Speed	306 MB/s		376 MB/s	Faster peak deep queue read. +23%
DQ Write Peak 4K-64Thread Write Speed	301 MB/s		343 MB/s	Faster peak deep queue write. +14%
AS-SSD Total AS-SSD Total Score	1,008 Pts		1,214 Pts	Stronger server IO. +20%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	220 MB/s	Much faster peak deep queue mixed IO. +34%	164 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	219 MB/s		325 MB/s	Much faster deep queue read. +48%
ADQ Write Avg. 4K-64Thread Write Speed	222 MB/s		267 MB/s	Faster deep queue write. +20%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	126 MB/s		148 MB/s	Faster deep queue mixed IO. +17%


Capacity Capacity			256GB			240GB

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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The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. ^{[Jun '14 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 $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	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) $35	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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