Average Bench: 82% - 155th / 836

Based on 523 user benchmarks.  Models: SanDisk SDSSDXP240G, SanDisk SDSSDXP2

The Sandisk Extreme II uses the 88SS9187-BLD2 controller, Marvel's latest, and Sandisk's own 19MM MLC Memory. On paper this makes an extremely good combination and the benchmarks agree. The Extreme II scored an impressive 1143 in the server orientated AS SSD Benchmark putting it amongst the more capable server drives. In terms of real world consumer performance the Extreme II also fared well achieving a real world speed index score of 570.5 MB/s, amongst the top three scores we have seen to date. The Extreme II has everything going for it apart from its price which is currently significantly above average and hurting its value rating. Because the Extreme is the newest SSD we have in our group test we expect prices will drop with time. Until then, however, there is better value to be had elsewhere. [Jun '13 SSDrivePro]


Very good average bench

The SanDisk Extreme II 240GB averaged just 18.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Extreme II 240GB near the top of the comparison list.


Avg. 4K Random Write Speed 80.4MB/s
Avg. 4K Random Read Speed 27.9MB/s
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Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme II 240GB is 44%. This is a relatively wide range which indicates that the SanDisk Extreme II 240GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 42.4MB/s
Avg. 4K-64Thread Read Speed 184MB/s

Average Bench

(Based on 523 samples)
Min Avg Max
339 Read 451 486
233 Write 372 474
247 Mixed 370 454
88.5% 398 MB/s
Min Avg Max
19.6 4K Read 27.9 35.3
39.3 4K Write 80.4 119
12 4K Mixed 20.8 28.6
112% 43 MB/s
Min Avg Max
23.5 DQ Read 184 360
59 DQ Write 190 302
11.7 DQ Mixed 42.4 67.6
71.7% 139 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
99GB free
Firmware: R1311 Max speed: SATA 3.0 600 MB/s
Read 466
Write 459
Mixed 407
99% 444 MB/s
4K Read 33.4
4K Write 101
4K Mixed 20.4
130% 51.4 MB/s
DQ Read 262
DQ Write 287
DQ Mixed 18
84% 189 MB/s
160GB free
Firmware: R131 Max speed: SATA 3.0 600 MB/s
Read 466
Write 466
Mixed 380
98% 437 MB/s
4K Read 21.7
4K Write 61.8
4K Mixed 19.5
91% 34.3 MB/s
DQ Read 294
DQ Write 256
DQ Mixed 66.1
107% 205 MB/s
3GB free
Firmware: R131 Max speed: SATA 3.0 600 MB/s
Read 469
Write 261
Mixed 285
75% 339 MB/s
4K Read 25.8
4K Write 79.1
4K Mixed 22.7
110% 42.5 MB/s
DQ Read 292
DQ Write 212
DQ Mixed 57.2
95% 187 MB/s
88GB free
Firmware: R1311
Read 472
Write 374
Mixed 390
92% 412 MB/s
4K Read 19.6
4K Write 45.8
4K Mixed 22.8
83% 29.4 MB/s
DQ Read 190
DQ Write 142
DQ Mixed 63.1
75% 132 MB/s
28GB free
Firmware: R1311 Max speed: SATA 3.0 600 MB/s
Read 335
Write 280
Mixed 299
68% 305 MB/s
4K Read 27
4K Write 61.3
4K Mixed 22
102% 36.8 MB/s
DQ Read 249
DQ Write 170
DQ Mixed 63.4
87% 161 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,124,209 SSDs tested.


AmazonUS $105.0014 months ago.
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Typical Extreme II 240GB Builds (Compare 3,570 builds) See popular component choices, score breakdowns and rankings.
Gaming 80%
Aircraft carrier
Desktop 82%
Aircraft carrier
Workstation 61%

Motherboard: Asus Z97-A - $130

EDIT WITH CUSTOM PC BUILDER Value: 86% - Excellent Total price: $949

Popular Extreme 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) February 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-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC.

Even More Speed for Your Most Intense Applications...

Added 3 years ago.

Very good

3 years ago.

Review  www.legitreviews.com/...

Image  www.legitreviews.com/...
Jun '13 AS SSD Benchmark Speed Test Score

Jun '13 AS SSD Benchmark Speed Test Score

Review  www.guru3d.com/...

Image  www.guru3d.com/...
Jun '13 AS SSD Benchmark Speed Test Result

Jun '13 AS SSD Benchmark Speed Test Result

Review  www.hardocp.com/...

Image  www.hardocp.com/...
Jun '13 AS SSD Benchmark Speed Test

Jun '13 AS SSD Benchmark Speed Test


12 months ago.

Info  ssd.userbenchmark.com/...

I have had 4 separate units of this model fail 5 times in 3 months. There is no use for this type of unreliable SSD. Lost data, time and money.

836 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 $346Nvidia GTX 1070 $370Samsung 850 Evo 250GB $94
Intel Pentium G4560 $72AMD RX 480 $175Samsung 850 Pro 256GB $124
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $170
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $570SanDisk Extreme 32GB $26
Seagate Barracuda 7200.14 1TB $50HyperX Fury DDR4 2133 C14 2x8GB $123SanDisk Extreme 16GB $18
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