Average Bench: 82% (391st of 1011)

more Based on 24,397 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 17.9% 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 206MB/s
Avg. 4K Random Mixed IO Speed 36.5MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 45%. 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 177MB/s
Avg. Sequential Mixed IO Speed 250MB/s

Average Bench

(Based on 24,397 samples)
Min Avg Max
338 Read 448 504
215 Write 361 472
155 Mixed 250 350
79.3 SusWrite 177 251
68.9% 309 MB/s
Min Avg Max
19 4K Read 29.2 38
36.6 4K Write 78 120
21.3 4K Mixed 36.5 48.5
132% 47.9 MB/s
Min Avg Max
34.9 DQ Read 320 389
109 DQ Write 245 308
46.9 DQ Mixed 206 254
175% 257 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
151GB free
Firmware: X31200RL
SusWrite @10s intervals: 239 216 216 218 216 216 MB/s
Read 488
Write 330
Mixed 220
SusWrite 220
70% 315 MB/s
4K Read 32.2
4K Write 83
4K Mixed 36.5
140% 50.6 MB/s
DQ Read 216
DQ Write 183
DQ Mixed 110
107% 170 MB/s
92GB free
Firmware: X31200RL
SusWrite @10s intervals: 266 195 214 214 214 214 MB/s
Read 452
Write 325
Mixed 193
SusWrite 219
66% 297 MB/s
4K Read 19.9
4K Write 43.5
4K Mixed 25.1
85% 29.5 MB/s
DQ Read 285
DQ Write 268
DQ Mixed 132
139% 228 MB/s
171GB free (System drive)
Firmware: X41320RL
SusWrite @10s intervals: 183 192 191 197 196 192 MB/s
Read 403
Write 363
Mixed 203
SusWrite 192
65% 290 MB/s
4K Read 26.2
4K Write 52.7
4K Mixed 31.1
108% 36.7 MB/s
DQ Read 33.3
DQ Write 110
DQ Mixed 45.4
42% 62.9 MB/s
24,397 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,505,468 SSDs tested.


Approx. $110 @ launch in Sep '14
EbayUS $581 min
AmazonUS $7014 mins
BHPhotoUS $7018 months
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Typical Ultra II 240GB Builds (Compare 32,693 builds) See popular component choices, score breakdowns and rankings.
Gaming 54%
Desktop 63%
Workstation 54%

Motherboard: Asus PRIME B350-PLUS - $100

EDIT WITH CUSTOM PC BUILDER Value: 67% - Good Total price: $548

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) October 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 5 years ago.

Good (edit your comment) Add link

5 months ago.

This drive is very generic, and not innovative.


9 months ago.

Little workhorse....great value.


5 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.


15 months ago.

Works fine for the most part. Never any problems.


5 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 $145Nvidia GTX 1660 $210Samsung 850 Evo 250GB $73
Intel Core i5-9600K $240Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $107
Intel Core i7-9700K $350Nvidia RTX 2060 $349Samsung 850 Pro 256GB $200
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
Seagate Barracuda 3TB (2016) $78G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $70SanDisk Ultra Fit 32GB $14
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