UserBenchmark: OCZ Vertex 450 vs SanDisk Extreme II

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OCZVTX450-25SAT3-128G

BUY • $80

SanDiskSDSSDXP-240G-G25

BUY • $110

BenchYourSSD

Real World Speed

Performance profile from 4,049 user samples

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1,040 User Benchmarks

Best Bench: 90% 130GB free
Worst Bench: 57% 72GB free (System drive)

Poor: 57% Great: 90%

SPEED RANK: 569^th / 1074

3,009 User Benchmarks

Best Bench: 109% 170GB free (System drive)
Worst Bench: 65% 77GB free (System drive)

Poor: 65% Great: 109%

SPEED RANK: 333^rd / 1074


Effective Speed Effective SSD Speed		75.5 %			90.1 %	Faster effective speed. +19%


Read Avg. Sequential Read Speed	410 MB/s		459 MB/s	Faster read speed. +12%
Write Avg. Sequential Write Speed	268 MB/s		393 MB/s	Much faster write speed. +47%
4K Read Avg. 4K Random Read Speed	20.1 MB/s		28.2 MB/s	Much faster random read. +40%
4K Write Avg. 4K Random Write Speed	87.6 MB/s	Faster random write. +14%	77.1 MB/s
Mixed Avg. Sequential Mixed IO Speed	263 MB/s	Faster mixed IO speed. +15%	228 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	28.2 MB/s		32.2 MB/s	Faster random mixed IO. +14%
SusWrite Avg. Sustained Write Speed	217 MB/s		341 MB/s	Much faster sustained write speed. +57%


Read Peak Sequential Read Speed	459 MB/s		507 MB/s	Faster peak read speed. +10%
Write Peak Sequential Write Speed	283 MB/s		469 MB/s	Much faster peak write speed. +66%
4K Read Peak 4K Random Read Speed	23.7 MB/s		34.1 MB/s	Much faster peak random read. +44%
4K Write Peak 4K Random Write Speed	132 MB/s	Faster peak random write. +18%	112 MB/s
Mixed Peak Sequential Mixed IO Speed	286 MB/s	Slightly faster peak mixed IO speed. +5%	272 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	33.7 MB/s		39.7 MB/s	Faster peak random mixed IO. +18%
SusWrite Peak Sequential Sustained Write 60s Average	274 MB/s		466 MB/s	Much faster peak sustained write speed. +70%

Market Share

Based on 75,959,811 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %		0 %
Value Value For Money	6.96 %		10.5 %	Much better value. +51%
User Rating UBM User Rating	51 %		54 %	Slightly more popular. +6%
Price Price (score)	$80	Cheaper. +27%	$110


Age Newest	132 Months		132 Months
DQ Read Peak 4K-64Thread Read Speed	301 MB/s		361 MB/s	Faster peak deep queue read. +20%
DQ Write Peak 4K-64Thread Write Speed	286 MB/s		306 MB/s	Slightly faster peak deep queue write. +7%
AS-SSD Total AS-SSD Total Score	1,005 Pts		1,149 Pts	Stronger server IO. +14%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	262 MB/s	Much faster peak deep queue mixed IO. +70%	154 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	265 MB/s		313 MB/s	Faster deep queue read. +18%
ADQ Write Avg. 4K-64Thread Write Speed	249 MB/s		260 MB/s	+4%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	227 MB/s	Much faster deep queue mixed IO. +63%	139 MB/s


Capacity Capacity			128GB			240GB

The 128GB Vertex 450 has a reasonable but somewhat unusual performance profile. The main weakness is its sequential write speed which is only 282 MB/s peak. This implies that the 128GB version has fewer NAND modules than both its larger 256GB sibling and several other leading 128GB models. Other SSDs, including some 128GB models can consistently achieve sequential write speeds in the 500 MB/s range. A handicap of this magnitude on a key performance metric would normally relegate an SSD to the lower divisions but the Vertex 450 offsets its poor sequential write speed with a record breaking 4K write speed of 158 MB/s which is the highest I have ever seen on any SSD. Overall the Vertex 450 has an average, but quirky, performance profile and is reasonably priced however there are both faster and cheaper alternatives available on the SSD leaderboard. ^{[Feb '14 SSDrivePro]}

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The Sandisk Extreme II uses the 88SS9187-BLD2 controller, Marvel's latest, and Sandisk's own 19MM MLC Memory. On paper this makes an extremely good combination and the benchmarks agree. The Extreme II scored an impressive 1143 in the server orientated AS SSD Benchmark putting it amongst the more capable server drives. In terms of real world consumer performance the Extreme II also fared well achieving a real world speed index score of 570.5 MB/s, amongst the top three scores we have seen to date. The Extreme II has everything going for it apart from its price which is currently significantly above average and hurting its value rating. Because the Extreme is the newest SSD we have in our group test we expect prices will drop with time. Until then, however, there is better value to be had elsewhere. ^{[Jun '13 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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Frequently Asked Questions

Storage Devices FAQ

What is sustained sequential write speed?

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CPU	GPU	SSD
Intel Core i5-13600K $260	Nvidia RTX 4060 $293	Crucial MX500 250GB $39
Intel Core i5-12600K $171	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i3-12100F $95	Nvidia RTX 4070 $542	Samsung 870 Evo 250GB $45

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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