UserBenchmark: SanDisk Extreme II vs Ultra Plus

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SanDiskSDSSDHP-128G-G25

BUY • $75

SanDiskSDSSDXP-120G-G25

$130

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Real World Speed

Performance profile from 19,171 user samples

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16,709 User Benchmarks

Best Bench: 91% 42GB free
Worst Bench: 56% 38GB free

Poor: 56% Great: 91%

SPEED RANK: 540^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		76.8 %			84.8 %	Faster effective speed. +10%


Read Avg. Sequential Read Speed	448 MB/s	464 MB/s	+4%
Write Avg. Sequential Write Speed	250 MB/s	292 MB/s	Faster write speed. +17%
4K Read Avg. 4K Random Read Speed	26.9 MB/s	27.9 MB/s	+4%
4K Write Avg. 4K Random Write Speed	72.2 MB/s	78.7 MB/s	Slightly faster random write. +9%
Mixed Avg. Sequential Mixed IO Speed	186 MB/s	219 MB/s	Faster mixed IO speed. +18%
4K Mixed Avg. 4K Random Mixed IO Speed	29.8 MB/s	32.5 MB/s	Slightly faster random mixed IO. +9%
SusWrite Avg. Sustained Write Speed	213 MB/s	260 MB/s	Faster sustained write speed. +22%


Read Peak Sequential Read Speed	492 MB/s	509 MB/s	+3%
Write Peak Sequential Write Speed	292 MB/s	326 MB/s	Faster peak write speed. +12%
4K Read Peak 4K Random Read Speed	32.3 MB/s	34.5 MB/s	Slightly faster peak random read. +7%
4K Write Peak 4K Random Write Speed	102 MB/s	119 MB/s	Faster peak random write. +17%
Mixed Peak Sequential Mixed IO Speed	220 MB/s	251 MB/s	Faster peak mixed IO speed. +14%
4K Mixed Peak 4K Random Mixed IO Speed	36.2 MB/s	40.5 MB/s	Faster peak random mixed IO. +12%
SusWrite Peak Sequential Sustained Write 60s Average	290 MB/s	323 MB/s	Faster peak sustained write speed. +11%

Market Share

Based on 75,636,792 SSDs tested

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Market Share Market Share (trailing 30 days)	0.01 %	Insanely higher market share. +∞%	0 %
Value Value For Money	7.45 %	Much better value. +44%	5.19 %
User Rating UBM User Rating	53 %	+4%	51 %
Price Price (score)	$75	Much cheaper. +42%	$130


Age Newest	135 Months	131 Months	+3%
DQ Read Peak 4K-64Thread Read Speed	319 MB/s	345 MB/s	Slightly faster peak deep queue read. +8%
DQ Write Peak 4K-64Thread Write Speed	199 MB/s	286 MB/s	Much faster peak deep queue write. +44%
AS-SSD Total AS-SSD Total Score	937 Pts	1,091 Pts	Stronger server IO. +16%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	125 MB/s	153 MB/s	Faster peak deep queue mixed IO. +22%
ADQ Read Avg. 4K-64Thread Read Speed	284 MB/s	300 MB/s	Slightly faster deep queue read. +6%
ADQ Write Avg. 4K-64Thread Write Speed	173 MB/s	239 MB/s	Much faster deep queue write. +38%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	114 MB/s	139 MB/s	Faster deep queue mixed IO. +22%


Capacity Capacity			128GB			120GB

The 128GB Sandisk Ultra Plus proved to be a bit of a disappointment in comparison to its larger 256GB sibling. The 256GB version has more NAND modules which enable peak sequential write speeds in the region of 450 MB/s. On the 128GB version we saw a peak sequential write speed of just 279 MB/s which is significantly lower than the market leaders which also manage to hit the high 400's. Across the core performance metrics, the 128GB Ultra Plus is around 25% slower than the average of its top competitors and, unlike its 256GB sibling, really struggles to keep up with its direct competition. In terms of value for money the Ultra Plus fares a little better thanks to its reasonably low price tag but there are far better deals to be had in the 128GB category. ^{[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) 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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Frequently Asked Questions

Storage Devices FAQ

What is sustained sequential write speed?

What’s the difference between SLC, MLC and TLC?

What is 3D XPoint and how fast is it?

What’s the difference between SATA, PCIe and NVMe?

What’s the difference between NAND and V-NAND?

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Solid State Drives

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What is 4K 64 thread write speed?

Can CPU power saving states (C1,C2,C3) impact SSD speed?

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CPU	GPU	SSD
Intel Core i5-13600K $273	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 $186	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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