Average Bench: 65.5% (411th of 857)

more Based on 8,479 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 34.4% 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 27.8MB/s
Avg. Sequential Read Speed 457MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 36.6%. 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 29.9MB/s
Avg. Sequential Mixed IO Speed 241MB/s

Average Bench

(Based on 8,479 samples)
Min Avg Max
356 Read 457 498
125 Write 243 338
126 Mixed 241 324
68.9% 313 MB/s
Min Avg Max
18.2 4K Read 27.8 36.5
24.3 4K Write 51.2 82.5
7.98 4K Mixed 14.6 21.2
87.9% 31.2 MB/s
Min Avg Max
22 DQ Read 177 358
35.3 DQ Write 131 209
8.06 DQ Mixed 29.9 51.2
56% 113 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
200GB free
Firmware: X41200RL Max speed: SATA 3.0 600 MB/s
Read 499
Write 285
Mixed 260
77% 348 MB/s
4K Read 38.2
4K Write 71.2
4K Mixed 12.6
112% 40.7 MB/s
DQ Read 329
DQ Write 202
DQ Mixed 10.1
76% 181 MB/s
191GB free
Firmware: X31200RL Max speed: SATA 3.0 600 MB/s
Read 464
Write 138
Mixed 98.2
50% 234 MB/s
4K Read 34.2
4K Write 61.5
4K Mixed 14.2
103% 36.6 MB/s
DQ Read 288
DQ Write 161
DQ Mixed 32
75% 160 MB/s
57GB free
Firmware: X31200RL Max speed: SATA 3.0 600 MB/s
Read 468
Write 284
Mixed 252
74% 335 MB/s
4K Read 21.3
4K Write 37.6
4K Mixed 15.6
72% 24.8 MB/s
DQ Read 232
DQ Write 120
DQ Mixed 51.2
71% 134 MB/s
97GB free
Firmware: X41100RL Max speed: SATA 3.0 600 MB/s
Read 469
Write 170
Mixed 243
64% 294 MB/s
4K Read 28.3
4K Write 38.6
4K Mixed 15.4
83% 27.5 MB/s
DQ Read 30.4
DQ Write 44.3
DQ Mixed 9.99
15% 28.2 MB/s
115GB free
Firmware: X31200RL Max speed: SATA 3.0 600 MB/s
Read 359
Write 182
Mixed 222
56% 254 MB/s
4K Read 23
4K Write 46.6
4K Mixed 9.4
72% 26.3 MB/s
DQ Read 22.5
DQ Write 39.7
DQ Mixed 8.72
13% 23.6 MB/s
8,479 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,541,596 SSDs tested.


AmazonUS $84.9914 mins ago.
EbayUS $96.493 mins ago.
BHPhotoUS $97.005 hrs ago.
NeweggUS $103.985 hrs ago.
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Typical Ultra II 240GB Builds (Compare 16,252 builds) See popular component choices, score breakdowns and rankings.
Gaming 93%
Nuclear submarine
Desktop 79%
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $127

EDIT WITH CUSTOM PC BUILDER Value: 85% - Excellent Total price: $1,028

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) August 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 months ago.

Little workhorse....great value.


2 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.


2 years ago.


1 month ago.


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857 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 $300Nvidia GTX 1070 $367Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $280AMD RX 480 $390Samsung 850 Pro 256GB $120
Intel Core i5-7600K $212Nvidia GTX 1060-6GB $280Samsung 850 Evo 500GB $165
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $718SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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