Average Bench: 81.9% (441st of 1058)

more Based on 47,416 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 18.1% 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 211MB/s
Avg. 4K Random Mixed IO Speed 36.2MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra II 240GB is 45.4%. 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 178MB/s
Avg. Sequential Mixed IO Speed 260MB/s

Average Bench

(Based on 47,416 samples)
Min Avg Max
329 Read 450 505
201 Write 369 480
167 Mixed 260 353
79.1 SusWrite 178 258
70.1% 314 MB/s
Min Avg Max
18.3 4K Read 29.5 39.1
32 4K Write 74 108
18.9 4K Mixed 36.2 50.1
130% 46.6 MB/s
Min Avg Max
167 DQ Read 332 390
103 DQ Write 249 309
80.8 DQ Mixed 211 255
179% 264 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
209GB free
Firmware: X41100RL
SusWrite @10s intervals: 458 214 175 163 183 172 MB/s
Read 504
Write 487
Mixed 352
SusWrite 228
88% 393 MB/s
4K Read 39.6
4K Write 106
4K Mixed 51.7
182% 65.9 MB/s
DQ Read 387
DQ Write 302
DQ Mixed 246
211% 312 MB/s
116GB free (System drive)
Firmware: X41200RL
SusWrite @10s intervals: 271 186 183 185 186 189 MB/s
Read 500
Write 462
Mixed 346
SusWrite 200
84% 377 MB/s
4K Read 36.6
4K Write 93.1
4K Mixed 47.4
166% 59 MB/s
DQ Read 379
DQ Write 295
DQ Mixed 250
211% 308 MB/s
193GB free (System drive)
Firmware: X31200RL
SusWrite @10s intervals: 264 212 205 213 216 219 MB/s
Read 488
Write 451
Mixed 286
SusWrite 222
81% 362 MB/s
4K Read 33.9
4K Write 108
4K Mixed 43.3
164% 61.7 MB/s
DQ Read 346
DQ Write 282
DQ Mixed 245
202% 291 MB/s
161GB free (System drive)
Firmware: X41200RL
SusWrite @10s intervals: 215 168 166 158 177 179 MB/s
Read 473
Write 460
Mixed 303
SusWrite 177
79% 353 MB/s
4K Read 30
4K Write 67.1
4K Mixed 37.2
129% 44.8 MB/s
DQ Read 391
DQ Write 269
DQ Mixed 253
210% 305 MB/s
87GB free (System drive)
Firmware: X41100RL
SusWrite @10s intervals: 258 188 149 83 89 119 MB/s
Read 472
Write 448
Mixed 281
SusWrite 148
75% 337 MB/s
4K Read 28.7
4K Write 50.3
4K Mixed 34.8
115% 37.9 MB/s
DQ Read 380
DQ Write 287
DQ Mixed 243
206% 304 MB/s
47,416 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,061,086 SSDs tested.


MSRP ≈ $110 @ launch in Sep '14
BHPhotoUS $703 years
EbayUS $743 mins
AmazonUS $13013 mins
Send price feedback
Typical Ultra II 240GB Builds (Compare 21,463 builds) See popular component choices, score breakdowns and rankings.
Gaming 70%
Desktop 88%
Aircraft carrier
Workstation 60%

Motherboard: Asus Z170 PRO GAMING - $295

EDIT WITH CUSTOM PC BUILDER Value: 60% - Good Total price: $1,145

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) September 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

27 days 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.


6 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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback