COMPARE
SSD
RANKINGS
TEST
YOUR SSD
ADD TO PC
BUILD
CrucialCT512M4SSD2
SanDiskSDSSDXP-240G-G25
▲ 501 ▼

Controller: Marvell 88SS9174-BLD2. Flash Memory: Micron Synchronous 25nm MLC. Release date ≤ Q4 2013.

VS
▲ 543,094 ▼

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

Effective Speed 
+35%
Real World Speed
Performance profile from 7,609 user samples
Benchmark your SSD here
4,600 User Benchmarks
Best Bench: 81% 377GB free
Worst Bench: 48% 120GB free (System drive)
Poor: 48% Great: 81%
SPEED RANK: 718th / 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 		66.9 % 90.1 % Much faster effective speed.
+35%
Average Score 
+27%
Read
Avg. Sequential Read Speed 		451 MB/s 459 MB/s +2%
Write
Avg. Sequential Write Speed 		248 MB/s 393 MB/s Much faster write speed.
+58%
4K Read
Avg. 4K Random Read Speed 		19.9 MB/s 28.2 MB/s Much faster random read.
+42%
4K Write
Avg. 4K Random Write Speed 		73.5 MB/s 77.1 MB/s +5%
Mixed
Avg. Sequential Mixed IO Speed 		273 MB/s Faster mixed IO speed.
+20% 		228 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		23.3 MB/s 32.2 MB/s Much faster random mixed IO.
+38%
SusWrite
Avg. Sustained Write Speed 		205 MB/s 341 MB/s Much faster sustained write speed.
+66%
Peak Score 
+33%
Read
Peak Sequential Read Speed 		501 MB/s 507 MB/s +1%
Write
Peak Sequential Write Speed 		279 MB/s 469 MB/s Much faster peak write speed.
+68%
4K Read
Peak 4K Random Read Speed 		23.5 MB/s 34.1 MB/s Much faster peak random read.
+45%
4K Write
Peak 4K Random Write Speed 		104 MB/s 112 MB/s Slightly faster peak random write.
+8%
Mixed
Peak Sequential Mixed IO Speed 		300 MB/s Faster peak mixed IO speed.
+10% 		272 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		27.7 MB/s 39.7 MB/s Much faster peak random mixed IO.
+43%
SusWrite
Peak Sequential Sustained Write 60s Average 		265 MB/s 466 MB/s Much faster peak sustained write speed.
+76%
Value & Sentiment 
�%
Market Share
Based on 75,823,365 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0 %
Value
Value For Money 		18.5 % Much better value.
+76% 		10.5 %
User Rating
UBM User Rating 		50 % 54 % Slightly more popular.
+8%
Price
Price (score) 		$74 Much cheaper.
+33% 		$110
Nice To Haves 
+89%
Age
Newest 		125+ Months Slightly more recent.
+5% 		132 Months
DQ Read
Peak 4K-64Thread Read Speed 		196 MB/s 361 MB/s Hugely faster peak deep queue read.
+84%
DQ Write
Peak 4K-64Thread Write Speed 		236 MB/s 306 MB/s Faster peak deep queue write.
+30%
AS-SSD Total
AS-SSD Total Score 		773 Pts 1,149 Pts Much stronger server IO.
+49%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		55.1 MB/s 154 MB/s Hugely faster peak deep queue mixed IO.
+179%
ADQ Read
Avg. 4K-64Thread Read Speed 		143 MB/s 313 MB/s Hugely faster deep queue read.
+119%
ADQ Write
Avg. 4K-64Thread Write Speed 		146 MB/s 260 MB/s Much faster deep queue write.
+78%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		49.3 MB/s 139 MB/s Hugely faster deep queue mixed IO.
+182%
Specifications 
Capacity
Capacity 		512GB 240GB
Conclusion 
Average Bench 66.9%
Average Bench 90.1%
ADVERTISEMENT

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

User Builds 
4,600
3,009
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Solid State Drive Rankings (Price vs Performance) May 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]

ADVERTISEMENT

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

Gaming Desktop ProGaming

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 $254Nvidia RTX 4060 $300Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback