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SanDiskSDSSDXP-240G-G25
OCZVTX450-25SAT3-512G
▲ 543,094 ▼

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2013.

VS
▲ 500 ▼

Controller: Indilinx Barefoot 3 M10 IDX500M10-BC. Flash Memory: IMFT Synchronous 20nm MLC. Release date ≈ Q1 2015.

Effective Speed 
+4%
Real World Speed
Performance profile from 3,084 user samples
Benchmark your SSD here
3,009 User Benchmarks
Best Bench: 109% 170GB free (System drive)
Worst Bench: 65% 77GB free (System drive)
Poor: 65% Great: 109%
SPEED RANK: 339th / 1080
75 User Benchmarks
Best Bench: 104% 302GB free
Worst Bench: 62% 7GB free (System drive)
Poor: 62% Great: 104%
SPEED RANK: 388th / 1080
Effective Speed
Effective SSD Speed 		90.1 % +4% 86.5 %
Average Score 
+4%
Read
Avg. Sequential Read Speed 		459 MB/s Slightly faster read speed.
+6% 		432 MB/s
Write
Avg. Sequential Write Speed 		393 MB/s 438 MB/s Faster write speed.
+11%
4K Read
Avg. 4K Random Read Speed 		28.2 MB/s Faster random read.
+27% 		22.2 MB/s
4K Write
Avg. 4K Random Write Speed 		77.1 MB/s +2% 75.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		228 MB/s 367 MB/s Much faster mixed IO speed.
+61%
4K Mixed
Avg. 4K Random Mixed IO Speed 		32.2 MB/s Faster random mixed IO.
+23% 		26.1 MB/s
SusWrite
Avg. Sustained Write Speed 		341 MB/s 394 MB/s Faster sustained write speed.
+16%
Peak Score 
+8%
Read
Peak Sequential Read Speed 		507 MB/s 512 MB/s +1%
Write
Peak Sequential Write Speed 		469 MB/s 499 MB/s Slightly faster peak write speed.
+6%
4K Read
Peak 4K Random Read Speed 		34.1 MB/s Faster peak random read.
+25% 		27.2 MB/s
4K Write
Peak 4K Random Write Speed 		112 MB/s 118 MB/s Slightly faster peak random write.
+5%
Mixed
Peak Sequential Mixed IO Speed 		272 MB/s 498 MB/s Hugely faster peak mixed IO speed.
+83%
4K Mixed
Peak 4K Random Mixed IO Speed 		39.7 MB/s Faster peak random mixed IO.
+15% 		34.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		466 MB/s 483 MB/s +4%
Value & Sentiment 
�%
Market Share
Based on 77,031,998 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0 %
Value
Value For Money 		10.5 % 11.4 % Slightly better value.
+8%
User Rating
UBM User Rating 		54 % Slightly more popular.
+8% 		50 %
Price
Price (score) 		$110 Much cheaper.
+45% 		$200
Nice To Haves 
+12%
Age
Newest 		136 Months 116+ Months More recent.
+15%
DQ Read
Peak 4K-64Thread Read Speed 		361 MB/s 368 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed 		306 MB/s 363 MB/s Faster peak deep queue write.
+19%
AS-SSD Total
AS-SSD Total Score 		1,149 Pts 1,213 Pts Slightly stronger server IO.
+6%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		154 MB/s 270 MB/s Much faster peak deep queue mixed IO.
+75%
ADQ Read
Avg. 4K-64Thread Read Speed 		313 MB/s Faster deep queue read.
+23% 		255 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		260 MB/s +5% 248 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		139 MB/s 149 MB/s Slightly faster deep queue mixed IO.
+7%
Specifications 
Capacity
Capacity 		240GB 512GB
Conclusion 
Average Bench 90.1%
Average Bench 86.5%

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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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]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
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 Frequently Asked Questions

Storage Devices FAQ
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Solid State Drives
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