Average Bench: 82.2% (451st of 1071)

more Based on 53,931 user benchmarks.  Models: SanDisk SDSSDHII240G, SanDisk Ultra II 240, SanDisk SDSSDHII, SanDis SDSSDHII240G, SanDis Ultra II 240GB, SanDisk Ultra II 240GB, SanDisk Ultra II

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]

Very good average bench

The SanDisk Ultra II 240GB averaged just 17.7% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Ultra II 240GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 202MB/s
Avg. 4K Random Mixed IO Speed 36.4MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 43.5%. This is a relatively wide range which indicates that the SanDisk Ultra II 240GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 179MB/s
Avg. Sequential Mixed IO Speed 255MB/s

Average Bench

(Based on 53,931 samples)
Min Avg Max
334 Read 446 504
213 Write 367 477
169 Mixed 255 352
81.5 SusWrite 179 254
69.5% 312 MB/s
Min Avg Max
19.2 4K Read 29.8 39.1
39.6 4K Write 77.3 112
21.3 4K Mixed 36.4 50
133% 47.8 MB/s
Min Avg Max
109 DQ Read 325 390
105 DQ Write 244 310
47.1 DQ Mixed 202 254
173% 257 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
156GB free
Firmware: X41320RL
SusWrite @10s intervals: 448 207 196 193 195 196 MB/s
Read 495
Write 475
Mixed 353
SusWrite 239
88% 390 MB/s
4K Read 36.3
4K Write 88.6
4K Mixed 45.7
160% 56.9 MB/s
DQ Read 389
DQ Write 302
DQ Mixed 254
215% 315 MB/s
80GB free (System drive)
Firmware: X31200RL
SusWrite @10s intervals: 268 215 213 196 217 196 MB/s
Read 476
Write 461
Mixed 300
SusWrite 218
81% 364 MB/s
4K Read 33.2
4K Write 103
4K Mixed 43.9
161% 60.1 MB/s
DQ Read 351
DQ Write 299
DQ Mixed 252
209% 301 MB/s
38GB free
Firmware: X31200RL
SusWrite @10s intervals: 214 167 170 41 45 63 MB/s
Read 503
Write 455
Mixed 312
SusWrite 116
77% 346 MB/s
4K Read 31.7
4K Write 79.2
4K Mixed 37.4
138% 49.4 MB/s
DQ Read 351
DQ Write 280
DQ Mixed 132
149% 254 MB/s
82GB free (System drive)
Firmware: X41200RL
SusWrite @10s intervals: 190 176 186 180 183 164 MB/s
Read 377
Write 220
Mixed 190
SusWrite 180
54% 242 MB/s
4K Read 13.9
4K Write 26.3
4K Mixed 19.7
60% 20 MB/s
DQ Read 108
DQ Write 106
DQ Mixed 102
78% 105 MB/s
53,931 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 65,444,779 SSDs tested.


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MSRP ≈ $110 @ launch in Sep '14
EbayUS $4519 mins
BHPhotoUS $704 years
AmazonUS $1306 mins
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Typical Ultra II 240GB Builds (Compare 9,967 builds) See popular component choices, score breakdowns and rankings.
Gaming 68%
Battle cruiser
Desktop 86%
Aircraft carrier
Workstation 58%

Motherboard: Asus Z170 PRO GAMING - $295

EDIT WITH CUSTOM PC BUILDER Value: 92% - Outstanding Total price: $746

Popular Ultra II 240GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

UserBenchmark of the month

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.
Solid State Drive Rankings (Price vs Performance) March 2023 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]


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.


Controller: Marvell 88SS9187. Memory: SanDisk 19nm TLC

Everything you do on your computer - faster...

Added 8 years ago.

Excellent (edit your comment) Add link

19 months ago.

This drive is very generic, and not innovative.


4 years ago.

Little workhorse....great value.


3 years ago.

Incompatibility with video drivers Catalyst 15.7. It takes 20 to 25 seconds on the screen of welcome. With an HDD this delay does not occur.


4 years ago.

Works fine for the most part. Never any problems.


8 years ago.

1071 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-13600K $315Nvidia RTX 3060-Ti $420Crucial MX500 250GB $31
Intel Core i5-12600K $194Nvidia RTX 3060 $365Samsung 850 Evo 120GB $106
Intel Core i5-12400F $155Nvidia RTX 4070-Ti $830Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $43SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $381SanDisk Ultra Fit 32GB $16
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