UserBenchmark: Plextor M5 Pro vs SanDisk Extreme II

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PlextorPX-128M5P

BUY • $130

SanDiskSDSSDXP-120G-G25

$130

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Real World Speed

Performance profile from 6,938 user samples

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4,476 User Benchmarks

Best Bench: 98% 64GB free
Worst Bench: 63% 14GB free

Poor: 63% Great: 98%

SPEED RANK: 428^th / 1072

2,462 User Benchmarks

Best Bench: 101% 112GB free
Worst Bench: 59% 87GB free

Poor: 59% Great: 101%

SPEED RANK: 408^th / 1072


Effective Speed Effective SSD Speed		83.8 %			84.8 %	+1%


Read Avg. Sequential Read Speed	451 MB/s		464 MB/s	+3%
Write Avg. Sequential Write Speed	305 MB/s	+4%	292 MB/s
4K Read Avg. 4K Random Read Speed	27.8 MB/s		27.9 MB/s	+0%
4K Write Avg. 4K Random Write Speed	63.1 MB/s		78.7 MB/s	Faster random write. +25%
Mixed Avg. Sequential Mixed IO Speed	259 MB/s	Faster mixed IO speed. +18%	219 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	32.3 MB/s		32.5 MB/s	+1%
SusWrite Avg. Sustained Write Speed	284 MB/s	Slightly faster sustained write speed. +9%	260 MB/s


Read Peak Sequential Read Speed	499 MB/s		509 MB/s	+2%
Write Peak Sequential Write Speed	325 MB/s		326 MB/s	+0%
4K Read Peak 4K Random Read Speed	34.2 MB/s		34.5 MB/s	+1%
4K Write Peak 4K Random Write Speed	89.2 MB/s		119 MB/s	Much faster peak random write. +33%
Mixed Peak Sequential Mixed IO Speed	292 MB/s	Faster peak mixed IO speed. +16%	251 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	41.4 MB/s	+2%	40.5 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	317 MB/s		323 MB/s	+2%

Market Share

Based on 75,849,749 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %		0 %
Value Value For Money	5.38 %	+4%	5.19 %
User Rating UBM User Rating	52 %	+2%	51 %
Price Price (score)	$130	+0%	$130


Age Newest	140 Months		132 Months	Slightly more recent. +6%
DQ Read Peak 4K-64Thread Read Speed	360 MB/s	+4%	345 MB/s
DQ Write Peak 4K-64Thread Write Speed	314 MB/s	Slightly faster peak deep queue write. +10%	286 MB/s
AS-SSD Total AS-SSD Total Score	1,110 Pts	+2%	1,091 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	213 MB/s	Much faster peak deep queue mixed IO. +39%	153 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	305 MB/s	+2%	300 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	258 MB/s	Slightly faster deep queue write. +8%	239 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	180 MB/s	Faster deep queue mixed IO. +29%	139 MB/s


Capacity Capacity			128GB			120GB

The 128GB Plextor M5 Pro has a reasonable performance profile. With an effective speed of 442 MB/s it ranks just 5% below the average of the top ten user rated 128GB SSDs, a good result. The M5 Pro's server orientated deep queue read/write speeds clocked in at 345/282 MB/s, slightly above average. As a consequence of having fewer NAND modules, the 128GB version is around 40% slower at sequential writing than its 256GB sibling. The larger capacity M5 Pro represents significantly better value for money. In the 128GB category some manufacturers (Samsung/OCZ) are offering the same sorts of speeds as typically seen in the faster 256GB category. In terms of performance, those SSDs currently stand heads and shoulders above the rest of the 128GB pack. There are several better value for money alternatives to the 128GB M5 Pro in the group test. ^{[Feb '14 SSDrivePro]}

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The 120GB Sandisk Extreme II proved to be a disappointment. I was expecting the same blistering performance as I saw on its larger 240GB sibling but that proved not to be the case. Comparing the 120GB and 240GB Extreme II's reveals that the larger 240GB version has peak speed ratings that are approximately 35% faster that the 120GB Extreme II. The main weakness of the 120GB Extreme II is its sequential write speed which is just 305 MB/s vs 492 MB/s on the 240GB version. Reduced write ability at lower capacities is explained by fewer NAND modules which reduce a controllers ability to parallelize slow write operations across different memory banks. Overall the Sandisk Extreme II sits amongst the bottom 20% of performers in the 120-128GB capacity category. Several of the drives in the group test have comparable performance at both the 120 and 240 GB capacities, those drives are the ones to go for. ^{[Feb '14 SSDrivePro]}

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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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CPU	GPU	SSD
Intel Core i5-13600K $254	Nvidia RTX 4060 $293	Crucial MX500 250GB $39
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $175	Nvidia RTX 4070 $550	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45	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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