UserBenchmark: Corsair Performance Pro vs SanDisk Extreme II

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CorsairCSSD-P256GBP-BK

$348

SanDiskSDSSDXP-120G-G25

$130

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Real World Speed

Performance profile from 2,780 user samples

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318 User Benchmarks

Best Bench: 98% 141GB free (System drive)
Worst Bench: 57% 238GB free

Poor: 57% Great: 98%

SPEED RANK: 459^th / 1072

2,462 User Benchmarks

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

Poor: 59% Great: 101%

SPEED RANK: 407^th / 1072


Effective Speed Effective SSD Speed		81.8 %			84.8 %	+4%


Read Avg. Sequential Read Speed	441 MB/s		464 MB/s	Slightly faster read speed. +5%
Write Avg. Sequential Write Speed	370 MB/s	Faster write speed. +27%	292 MB/s
4K Read Avg. 4K Random Read Speed	25.4 MB/s		27.9 MB/s	Slightly faster random read. +10%
4K Write Avg. 4K Random Write Speed	59.9 MB/s		78.7 MB/s	Much faster random write. +31%
Mixed Avg. Sequential Mixed IO Speed	333 MB/s	Much faster mixed IO speed. +52%	219 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	28.2 MB/s		32.5 MB/s	Faster random mixed IO. +15%
SusWrite Avg. Sustained Write Speed	333 MB/s	Faster sustained write speed. +28%	260 MB/s


Read Peak Sequential Read Speed	502 MB/s		509 MB/s	+1%
Write Peak Sequential Write Speed	417 MB/s	Faster peak write speed. +28%	326 MB/s
4K Read Peak 4K Random Read Speed	31.8 MB/s		34.5 MB/s	Slightly faster peak random read. +8%
4K Write Peak 4K Random Write Speed	87.5 MB/s		119 MB/s	Much faster peak random write. +36%
Mixed Peak Sequential Mixed IO Speed	451 MB/s	Much faster peak mixed IO speed. +80%	251 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	38.2 MB/s		40.5 MB/s	Slightly faster peak random mixed IO. +6%
SusWrite Peak Sequential Sustained Write 60s Average	393 MB/s	Faster peak sustained write speed. +22%	323 MB/s

Market Share

Based on 75,776,338 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %		0 %
Value Value For Money	4.22 %		5.19 %	Better value. +23%
User Rating UBM User Rating	52 %	+2%	51 %
Price Price (score)	$348		$130	Much cheaper. +63%


Age Newest	150 Months		132 Months	More recent. +12%
DQ Read Peak 4K-64Thread Read Speed	298 MB/s		345 MB/s	Faster peak deep queue read. +16%
DQ Write Peak 4K-64Thread Write Speed	272 MB/s		286 MB/s	Slightly faster peak deep queue write. +5%
AS-SSD Total AS-SSD Total Score	983 Pts		1,091 Pts	Stronger server IO. +11%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	198 MB/s	Faster peak deep queue mixed IO. +29%	153 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	227 MB/s		300 MB/s	Much faster deep queue read. +32%
ADQ Write Avg. 4K-64Thread Write Speed	212 MB/s		239 MB/s	Faster deep queue write. +13%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	124 MB/s		139 MB/s	Faster deep queue mixed IO. +12%


Capacity Capacity			256GB			120GB

We really liked this drive when it was released back in Nov '11. It had great real world performance both with compressible and incompressible data and was powered by the Marvel 88S9174-BKK2 controller which had very few reported reliability issues. Back when the Performance Pro was released it was one of the fastest SSD's on the market and to this day is able to spar with the latest and greatest. With a real world speed index of 450.6 MB/s the Corsair currently lies just above the midway marker for real world performance and similarly for server orientated workloads the Performance Pro is just above average with its AS-SSD score of 892. These drives have been superseded by the Neutron series and the remaining available stock is significantly overpriced at 240 GBP. ^{[Oct '12 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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Storage Devices FAQ

What is sustained sequential write speed?

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CPU	GPU	SSD
Intel Core i5-13600K $254	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 $163	Nvidia RTX 4070 $539	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) $37	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $79	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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