Average Bench: 82.2% (439th of 1058)

more Based on 51,997 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 17.8% 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 207MB/s
Avg. 4K Random Mixed IO Speed 35.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 43.1%. 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 183MB/s
Avg. Sequential Mixed IO Speed 260MB/s

Average Bench

(Based on 51,997 samples)
Min Avg Max
333 Read 449 503
218 Write 373 478
177 Mixed 260 353
78.6 SusWrite 183 261
70.5% 316 MB/s
Min Avg Max
19.7 4K Read 29.6 38.7
36.3 4K Write 75 111
21.8 4K Mixed 35.9 49.5
131% 46.8 MB/s
Min Avg Max
128 DQ Read 330 390
96 DQ Write 247 310
72.3 DQ Mixed 207 255
177% 261 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
49GB free (System drive)
Firmware: X31200RL
SusWrite @10s intervals: 414 227 216 186 95 77 MB/s
Read 504
Write 457
Mixed 311
SusWrite 202
82% 368 MB/s
4K Read 31.8
4K Write 76.1
4K Mixed 39.7
139% 49.2 MB/s
DQ Read 345
DQ Write 308
DQ Mixed 258
212% 304 MB/s
123GB free
Firmware: X41200RL
SusWrite @10s intervals: 431 182 174 172 147 179 MB/s
Read 480
Write 463
Mixed 340
SusWrite 214
84% 374 MB/s
4K Read 30.4
4K Write 59.8
4K Mixed 37.1
125% 42.4 MB/s
DQ Read 382
DQ Write 295
DQ Mixed 254
213% 310 MB/s
185GB free
Firmware: X41100RL
SusWrite @10s intervals: 415 180 164 185 186 185 MB/s
Read 431
Write 443
Mixed 328
SusWrite 219
80% 355 MB/s
4K Read 21
4K Write 44.9
4K Mixed 28.4
92% 31.4 MB/s
DQ Read 379
DQ Write 288
DQ Mixed 245
207% 304 MB/s
73GB free (System drive)
Firmware: X41100RL
SusWrite @10s intervals: 208 92 64 89 96 66 MB/s
Read 369
Write 377
Mixed 209
SusWrite 102
59% 264 MB/s
4K Read 25.2
4K Write 46.3
4K Mixed 27.3
98% 32.9 MB/s
DQ Read 364
DQ Write 135
DQ Mixed 234
177% 244 MB/s
51,997 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 49,338,580 SSDs tested.


MSRP ≈ $110 @ launch in Sep '14
BHPhotoUS $703 years
EbayUS $8020 mins
AmazonUS $1302 months
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Typical Ultra II 240GB Builds (Compare 22,870 builds) See popular component choices, score breakdowns and rankings.
Gaming 71%
Desktop 88%
Aircraft carrier
Workstation 60%

Motherboard: Asus Z170 PRO GAMING - $295

EDIT WITH CUSTOM PC BUILDER Value: 85% - Excellent Total price: $936

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) November 2021 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

3 months ago.

This drive is very generic, and not innovative.


2 years ago.

Little workhorse....great value.


2 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 $300Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $220Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $300Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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