Average Bench: 82.6% (429th of 1058)

more Based on 52,142 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 17.3% 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 210MB/s
Avg. 4K Random Mixed IO Speed 36.3MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 42.3%. 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 182MB/s
Avg. Sequential Mixed IO Speed 262MB/s

Average Bench

(Based on 52,142 samples)
Min Avg Max
352 Read 452 504
216 Write 372 476
173 Mixed 262 351
84.8 SusWrite 182 262
70.8% 317 MB/s
Min Avg Max
19.7 4K Read 29.7 38.7
34.2 4K Write 75.1 112
21.4 4K Mixed 36.3 49.4
131% 47 MB/s
Min Avg Max
189 DQ Read 332 390
108 DQ Write 251 309
99.3 DQ Mixed 210 255
179% 264 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
223GB free
Firmware: X31000RL
SusWrite @10s intervals: 475 380 222 221 222 202 MB/s
Read 489
Write 471
Mixed 317
SusWrite 287
88% 391 MB/s
4K Read 34.7
4K Write 101
4K Mixed 45.4
164% 60.3 MB/s
DQ Read 353
DQ Write 304
DQ Mixed 255
211% 304 MB/s
213GB free
Firmware: X31200RL
SusWrite @10s intervals: 463 246 219 218 219 200 MB/s
Read 493
Write 469
Mixed 314
SusWrite 261
86% 384 MB/s
4K Read 34.7
4K Write 104
4K Mixed 45.6
166% 61.4 MB/s
DQ Read 352
DQ Write 308
DQ Mixed 255
212% 305 MB/s
43GB free (System drive)
Firmware: X31200RL
SusWrite @10s intervals: 299 214 201 196 193 200 MB/s
Read 455
Write 403
Mixed 276
SusWrite 217
76% 338 MB/s
4K Read 28.1
4K Write 104
4K Mixed 40.1
149% 57.4 MB/s
DQ Read 350
DQ Write 316
DQ Mixed 255
212% 307 MB/s
52,142 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 55,018,803 SSDs tested.


MSRP ≈ $110 @ launch in Sep '14
EbayUS $459 days
BHPhotoUS $704 years
AmazonUS $1307 months
Send price feedback
Typical Ultra II 240GB Builds (Compare 26,027 builds) See popular component choices, score breakdowns and rankings.
Gaming 71%
Desktop 88%
Aircraft carrier
Workstation 61%

Motherboard: Asus Z170 PRO GAMING - $295

EDIT WITH CUSTOM PC BUILDER Value: 92% - Outstanding Total price: $850

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) May 2022 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 7 years ago.

Excellent (edit your comment) Add link

8 months ago.

This drive is very generic, and not innovative.


3 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.


3 years ago.

Works fine for the most part. Never any problems.


7 years ago.

1058 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 i5-12600K $278Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-12400F $160Nvidia RTX 3070 $500Samsung 850 Evo 120GB $200
Intel Core i7-12700K $334Nvidia RTX 3050 $250Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $72SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback