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CorsairCSSD-P256GBP-BK
$348
SanDiskSDSSDXP-240G-G25
▲ 52483 ▼
 $348 

Controller: Marvell 88S9174-BKK2. FLASH: Toshiba 32nm Toggle Mode MLC. Release date: Q4 2011.

VS
▲ 543,094 ▼

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

Effective Speed 
+10%
Real World Speed
Performance profile from 3,327 user samples
Benchmark your SSD here
318 User Benchmarks
Best Bench: 98% 141GB free (System drive)
Worst Bench: 57% 238GB free
Poor: 57% Great: 98%
SPEED RANK: 459th / 1072
3,009 User Benchmarks
Best Bench: 109% 170GB free (System drive)
Worst Bench: 65% 77GB free (System drive)
Poor: 65% Great: 109%
SPEED RANK: 331st / 1072
Effective Speed
Effective SSD Speed 		81.8 % 90.1 % Faster effective speed.
+10%
Average Score 
+3%
Read
Avg. Sequential Read Speed 		441 MB/s 459 MB/s +4%
Write
Avg. Sequential Write Speed 		370 MB/s 393 MB/s Slightly faster write speed.
+6%
4K Read
Avg. 4K Random Read Speed 		25.4 MB/s 28.2 MB/s Faster random read.
+11%
4K Write
Avg. 4K Random Write Speed 		59.9 MB/s 77.1 MB/s Faster random write.
+29%
Mixed
Avg. Sequential Mixed IO Speed 		333 MB/s Much faster mixed IO speed.
+46% 		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 		333 MB/s 341 MB/s +2%
Peak Score 
+1%
Read
Peak Sequential Read Speed 		502 MB/s 507 MB/s +1%
Write
Peak Sequential Write Speed 		417 MB/s 469 MB/s Faster peak write speed.
+12%
4K Read
Peak 4K Random Read Speed 		31.8 MB/s 34.1 MB/s Slightly faster peak random read.
+7%
4K Write
Peak 4K Random Write Speed 		87.5 MB/s 112 MB/s Faster peak random write.
+28%
Mixed
Peak Sequential Mixed IO Speed 		451 MB/s Much faster peak mixed IO speed.
+66% 		272 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		38.2 MB/s 39.7 MB/s +4%
SusWrite
Peak Sequential Sustained Write 60s Average 		393 MB/s 466 MB/s Faster peak sustained write speed.
+19%
Value & Sentiment 
�%
Market Share
Based on 75,657,363 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0 %
Value
Value For Money 		4.22 % 10.5 % Hugely better value.
+149%
User Rating
UBM User Rating 		52 % 54 % +4%
Price
Price (score) 		$348 $110 Much cheaper.
+68%
Nice To Haves 
+13%
Age
Newest 		149 Months 131 Months More recent.
+12%
DQ Read
Peak 4K-64Thread Read Speed 		298 MB/s 361 MB/s Faster peak deep queue read.
+21%
DQ Write
Peak 4K-64Thread Write Speed 		272 MB/s 306 MB/s Faster peak deep queue write.
+12%
AS-SSD Total
AS-SSD Total Score 		983 Pts 1,149 Pts Stronger server IO.
+17%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		198 MB/s Faster peak deep queue mixed IO.
+29% 		154 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		227 MB/s 313 MB/s Much faster deep queue read.
+38%
ADQ Write
Avg. 4K-64Thread Write Speed 		212 MB/s 260 MB/s Faster deep queue write.
+23%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		124 MB/s 139 MB/s Faster deep queue mixed IO.
+12%
Specifications 
Capacity
Capacity 		256GB 240GB
Conclusion 
Average Bench 81.8%
Average Bench 90.1%
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We really liked this drive when it was released back in Nov '11. It had great real world performance both with compressible and incompressible data and was powered by the Marvel 88S9174-BKK2 controller which had very few reported reliability issues. Back when the Performance Pro was released it was one of the fastest SSD's on the market and to this day is able to spar with the latest and greatest. With a real world speed index of 450.6 MB/s the Corsair currently lies just above the midway marker for real world performance and similarly for server orientated workloads the Performance Pro is just above average with its AS-SSD score of 892. These drives have been superseded by the Neutron series and the remaining available stock is significantly overpriced at 240 GBP. [Oct '12 SSDrivePro]

MORE DETAILS

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]

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?
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ALL FAQs »

 Best User Rated
The Best.
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Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia 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) $35Corsair 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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