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SanDiskSDSSDHII-240G-G25
CrucialCT960BX200SSD1
▲ 547,376 ▼

Controller: Marvell 88SS9187. Memory: SanDisk 19nm TLC. Release date: Q3 2014.

VS
▲ 5152 ▼

Controller: Silicon Motion SM2256. Flash Memory: Micron 16nm MLC. Release date: Q4 2015.

Effective Speed 
+1%
Real World Speed
Performance profile from 55,126 user samples
Benchmark your SSD here
53,931 User Benchmarks
Best Bench: 101% 220GB free
Worst Bench: 58% 120GB free
Poor: 58% Great: 101%
SPEED RANK: 460th / 1080
1,195 User Benchmarks
Best Bench: 100% 254GB free
Worst Bench: 60% 854GB free (System drive)
Poor: 60% Great: 100%
SPEED RANK: 452nd / 1080
Effective Speed
Effective SSD Speed 		82.2 % 82.7 % +1%
Average Score 
+6%
Read
Avg. Sequential Read Speed 		446 MB/s 455 MB/s +2%
Write
Avg. Sequential Write Speed 		367 MB/s 376 MB/s +2%
4K Read
Avg. 4K Random Read Speed 		29.8 MB/s +4% 28.7 MB/s
4K Write
Avg. 4K Random Write Speed 		77.3 MB/s Slightly faster random write.
+9% 		71.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		255 MB/s 320 MB/s Faster mixed IO speed.
+25%
4K Mixed
Avg. 4K Random Mixed IO Speed 		36.4 MB/s 38.5 MB/s Slightly faster random mixed IO.
+6%
SusWrite
Avg. Sustained Write Speed 		179 MB/s 214 MB/s Faster sustained write speed.
+20%
Peak Score 
+3%
Read
Peak Sequential Read Speed 		504 MB/s +0% 502 MB/s
Write
Peak Sequential Write Speed 		477 MB/s Slightly faster peak write speed.
+6% 		449 MB/s
4K Read
Peak 4K Random Read Speed 		39.1 MB/s Faster peak random read.
+18% 		33.2 MB/s
4K Write
Peak 4K Random Write Speed 		112 MB/s +2% 110 MB/s
Mixed
Peak Sequential Mixed IO Speed 		352 MB/s 399 MB/s Faster peak mixed IO speed.
+13%
4K Mixed
Peak 4K Random Mixed IO Speed 		50 MB/s +2% 49.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		254 MB/s Slightly faster peak sustained write speed.
+9% 		233 MB/s
Value & Sentiment 
+31%
Market Share
Based on 77,580,897 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % Hugely higher market share.
+100% 		0.01 %
Value
Value For Money 		24.5 % 34.7 % Much better value.
+42%
User Rating
UBM User Rating 		54 % Slightly more popular.
+6% 		51 %
Price
Price (score) 		$32 Much cheaper.
+60% 		$80
Nice To Haves 
+7%
Age
Newest 		122 Months 108 Months More recent.
+11%
DQ Read
Peak 4K-64Thread Read Speed 		390 MB/s Faster peak deep queue read.
+20% 		324 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		310 MB/s 335 MB/s Slightly faster peak deep queue write.
+8%
AS-SSD Total
AS-SSD Total Score 		1,207 Pts Slightly stronger server IO.
+8% 		1,115 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		254 MB/s +5% 243 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		325 MB/s Faster deep queue read.
+21% 		269 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		244 MB/s Faster deep queue write.
+12% 		218 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		202 MB/s Slightly faster deep queue mixed IO.
+6% 		190 MB/s
Specifications 
Capacity
Capacity 		240GB 960GB
Conclusion 
Average Bench 82.2%
Average Bench 82.7%

The Sandisk Ultra II sits above Sandisk's Ultra Plus and below their Extreme Pro. The Ultra Plus would probably have been phased out completely were it not for its continued success within budget space. The Ultra II is the first Sandisk drive to utilize cheaper (and slower) TLC NAND. Similarly to the Extreme Pro, the Ultra II utilizes an nCache which operates a portion of the NAND in simulated SLC mode. This strategy also matches the one employed by Samsung's now 14 months old Evo. Comparing the Ultra II and Evo shows broad performance equivalence which given the Ultra II's 15% price discount makes it the better choice today. That said it's probably worth waiting for the release of the 850 Evo which will pack another 14 months of Samsung's market leading R&D and will probably steal the show. [Sep '14 SSDrivePro]

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Welcome to our 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?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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The Best
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Intel Core i5-12600K $165Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $129
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $389
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