Average Bench: 65.4% (402nd of 848)

more Based on 6,230 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]


Above average average bench

The SanDisk Ultra II 240GB averaged 34.6% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Read Speed 26.9MB/s
Avg. Sequential Read Speed 449MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 36.7%. This is a relatively wide range which indicates that the SanDisk Ultra II 240GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 30.9MB/s
Avg. Sequential Mixed IO Speed 240MB/s

Average Bench

(Based on 6,230 samples)
Min Avg Max
339 Read 449 496
139 Write 245 335
135 Mixed 240 325
68.5% 312 MB/s
Min Avg Max
17.3 4K Read 26.9 35.7
22 4K Write 50.7 82.5
8.02 4K Mixed 14.5 21
86.2% 30.7 MB/s
Min Avg Max
22.5 DQ Read 191 359
36 DQ Write 138 211
7.83 DQ Mixed 30.9 51.3
59.4% 120 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
171GB free
Firmware: X31200RL Max speed: SATA 3.0 600 MB/s
Read 461
Write 167
Mixed 208
61% 279 MB/s
4K Read 30.4
4K Write 76
4K Mixed 20.4
112% 42.3 MB/s
DQ Read 314
DQ Write 216
DQ Mixed 36
89% 188 MB/s
138GB free
Firmware: X31200RL Max speed: SATA 3.0 600 MB/s
Read 468
Write 257
Mixed 251
72% 325 MB/s
4K Read 34.3
4K Write 74.9
4K Mixed 13.8
109% 41 MB/s
DQ Read 35.9
DQ Write 82.9
DQ Mixed 13.4
23% 44 MB/s
110GB free
Firmware: X41200RL Max speed: SATA 3.0 600 MB/s
Read 489
Write 231
Mixed 241
70% 321 MB/s
4K Read 36.9
4K Write 68.2
4K Mixed 12.3
108% 39.2 MB/s
DQ Read 32.5
DQ Write 68.9
DQ Mixed 12.2
20% 37.9 MB/s
92GB free
Firmware: X31200RL Max speed: SATA 3.0 600 MB/s
Read 468
Write 174
Mixed 79.1
52% 241 MB/s
4K Read 29.9
4K Write 49.4
4K Mixed 9.17
83% 29.5 MB/s
DQ Read 241
DQ Write 161
DQ Mixed 44.8
76% 149 MB/s
10GB free
Firmware: X41200RL Max speed: SATA 3.0 600 MB/s
Read 341
Write 96.8
Mixed 68.5
36% 169 MB/s
4K Read 20.7
4K Write 28.1
4K Mixed 11.5
61% 20.1 MB/s
DQ Read 24.9
DQ Write 55.2
DQ Mixed 12.4
17% 30.8 MB/s
6,230 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,393,235 SSDs tested.


AmazonUS $84.9915 mins ago.
EbayUS $84.994 mins ago.
BHPhotoUS $89.844 hrs ago.
NeweggUS $97.984 hrs ago.
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Typical Ultra II 240GB Builds (Compare 12,008 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 80%
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $149

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $989

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) March 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


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

Everything you do on your computer - faster...

Added 2 years ago.


2 years ago.


12 days ago.

Little workhorse....great value.


8 days 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.


8 days ago.


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848 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 i7-7700K $310Nvidia GTX 1070 $370Samsung 850 Evo 250GB $98
Intel Core i5-7600K $215AMD RX 480 $199Samsung 850 Pro 256GB $138
AMD Ryzen 7 1700 $328Nvidia GTX 1060-6GB $225Samsung 850 Evo 500GB $169
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $430SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $135SanDisk Ultra Fit 32GB $9
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