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SanDiskSDSSDHII-240G-G25
OCZVTR1-25SAT3-256G
$240
▲ 547,376 ▼

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

VS
▲ 522,033 ▼
 $240 

Controller: Indilinx Barefoot 3 IDX500M00-BC. Flash Memory: IMFT Synchronous 25nm MLC. Release date: Q4 2012.

Effective Speed 
+13%
Real World Speed
Performance profile from 56,026 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: 452nd / 1072
2,095 User Benchmarks
Best Bench: 111% 199GB free
Worst Bench: 60% 238GB free
Poor: 60% Great: 111%
SPEED RANK: 299th / 1072
Effective Speed
Effective SSD Speed 		82.2 % 92.6 % Faster effective speed.
+13%
Average Score 
+18%
Read
Avg. Sequential Read Speed 		446 MB/s +3% 432 MB/s
Write
Avg. Sequential Write Speed 		367 MB/s 424 MB/s Faster write speed.
+16%
4K Read
Avg. 4K Random Read Speed 		29.8 MB/s Faster random read.
+26% 		23.7 MB/s
4K Write
Avg. 4K Random Write Speed 		77.3 MB/s 83.8 MB/s Slightly faster random write.
+8%
Mixed
Avg. Sequential Mixed IO Speed 		255 MB/s 313 MB/s Faster mixed IO speed.
+23%
4K Mixed
Avg. 4K Random Mixed IO Speed 		36.4 MB/s Slightly faster random mixed IO.
+8% 		33.8 MB/s
SusWrite
Avg. Sustained Write Speed 		179 MB/s 385 MB/s Hugely faster sustained write speed.
+115%
Peak Score 
+5%
Read
Peak Sequential Read Speed 		504 MB/s +2% 493 MB/s
Write
Peak Sequential Write Speed 		477 MB/s 488 MB/s +2%
4K Read
Peak 4K Random Read Speed 		39.1 MB/s Much faster peak random read.
+41% 		27.8 MB/s
4K Write
Peak 4K Random Write Speed 		112 MB/s 123 MB/s Slightly faster peak random write.
+10%
Mixed
Peak Sequential Mixed IO Speed 		352 MB/s 353 MB/s +0%
4K Mixed
Peak 4K Random Mixed IO Speed 		50 MB/s Faster peak random mixed IO.
+21% 		41.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		254 MB/s 479 MB/s Hugely faster peak sustained write speed.
+89%
Value & Sentiment 
+∞%
Market Share
Based on 75,667,796 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.06 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		20.5 % Hugely better value.
+224% 		6.32 %
User Rating
UBM User Rating 		54 % +4% 52 %
Price
Price (score) 		$40 Hugely cheaper.
+83% 		$240
Nice To Haves 
+9%
Age
Newest 		115 Months More recent.
+15% 		136 Months
DQ Read
Peak 4K-64Thread Read Speed 		390 MB/s +3% 379 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		310 MB/s 371 MB/s Faster peak deep queue write.
+20%
AS-SSD Total
AS-SSD Total Score 		1,207 Pts 1,241 Pts +3%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		254 MB/s 301 MB/s Faster peak deep queue mixed IO.
+19%
ADQ Read
Avg. 4K-64Thread Read Speed 		325 MB/s 329 MB/s +1%
ADQ Write
Avg. 4K-64Thread Write Speed 		244 MB/s 294 MB/s Faster deep queue write.
+20%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		202 MB/s 250 MB/s Faster deep queue mixed IO.
+24%
Specifications 
Capacity
Capacity 		240GB 256GB
Conclusion 
Average Bench 82.2%
Average Bench 92.6%
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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]

MORE DETAILS

This is the first solid state drive to feature OCZ's in-house Indilinx Barefoot 3 (IDX500M00-BC) controller and what a debut it proved to be. OCZ still use third party memory (Intel Micron Synchronous 25nm MLC) so unlike the Samsung 840 Pro the Vector is not built 100% in house. There have been several SSDs released recently, each slightly besting the other in some small corner of benchmark space. First the Corsiar Neutron GTX, then the Samsung 840 Pro and now the Vector which currently holds the crown for sequential write and 4K write. In terms of overall performance the Vector achieved a real world speed of 578.8 MB/s and an AS-SSD score of 1243 both are spectacular results that firmly place the vector amongst the top two or three performance SSD's currently available. In terms of raw performance the only alternative is the Samsung 840 Pro. [Jun '13 SSDrivePro]

MORE DETAILS

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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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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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

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How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 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?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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