Average Bench: 83.5% (364th of 1011)

more Based on 27,062 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 16.5% 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 203MB/s
Avg. 4K Random Mixed IO Speed 37.1MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 43.4%. 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 181MB/s
Avg. Sequential Mixed IO Speed 253MB/s

Average Bench

(Based on 27,062 samples)
Min Avg Max
348 Read 454 504
220 Write 373 475
156 Mixed 253 336
80.8 SusWrite 181 249
70.3% 315 MB/s
Min Avg Max
19.9 4K Read 30 39.3
35.8 4K Write 80 121
23.4 4K Mixed 37.1 50.4
135% 49 MB/s
Min Avg Max
102 DQ Read 319 389
98.5 DQ Write 247 309
46.5 DQ Mixed 203 254
173% 256 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
155GB free (System drive)
Firmware: X41200RL
SusWrite @10s intervals: 357 276 198 189 185 195 MB/s
Read 481
Write 458
Mixed 335
SusWrite 233
84% 377 MB/s
4K Read 31.8
4K Write 66.5
4K Mixed 39.4
134% 45.9 MB/s
DQ Read 384
DQ Write 295
DQ Mixed 224
199% 301 MB/s
177GB free (System drive)
Firmware: X41100RL
SusWrite @10s intervals: 218 190 180 157 128 156 MB/s
Read 368
Write 298
Mixed 173
SusWrite 172
56% 253 MB/s
4K Read 30.7
4K Write 102
4K Mixed 48.7
163% 60.3 MB/s
DQ Read 324
DQ Write 250
DQ Mixed 231
188% 268 MB/s
93GB free (System drive)
Firmware: X41100RL
SusWrite @10s intervals: 162 172 116 72 132 109 MB/s
Read 482
Write 337
Mixed 224
SusWrite 127
65% 293 MB/s
4K Read 28.8
4K Write 59.9
4K Mixed 35.2
120% 41.3 MB/s
DQ Read 386
DQ Write 252
DQ Mixed 220
191% 286 MB/s
27GB free (System drive)
Firmware: X41200RL
SusWrite @10s intervals: 314 137 74 78 55 37 MB/s
Read 358
Write 434
Mixed 323
SusWrite 116
69% 308 MB/s
4K Read 7.9
4K Write 74.3
4K Mixed 19.6
76% 33.9 MB/s
DQ Read 29.1
DQ Write 300
DQ Mixed 127
109% 152 MB/s
27,062 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 16,944,654 SSDs tested.


Approx. $110 @ launch in Sep '14
AmazonUS $607 mins
BHPhotoUS $7016 months
EbayUS $7021 mins
Send price feedback
Typical Ultra II 240GB Builds (Compare 30,842 builds) See popular component choices, score breakdowns and rankings.
Gaming 54%
Desktop 64%
Workstation 55%

Motherboard: Asus PRIME B350-PLUS - $140

EDIT WITH CUSTOM PC BUILDER Value: 60% - Good Total price: $658

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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) August 2019 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 4 years ago.

Good (edit your comment) Add link

4 months ago.

This drive is very generic, and not innovative.


7 months ago.

Little workhorse....great value.


3 months 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.


13 months ago.

Works fine for the most part. Never any problems.


4 years ago.

1011 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 i5-9400F $143Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $196AMD RX 580 $173Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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