Average Bench: 88.7% (178th of 947)

Based on 4,450 user benchmarks.  Models: SanDisk SDSSDXPS240G, SanDisk SDSSDXPS240G 142573401701 X21000RL, SanDisk SDSSDXPS

The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '14 SSDrivePro]


Very good average bench

The SanDisk Extreme Pro 240GB averaged just 11.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Extreme Pro 240GB near the top of the comparison list.


Avg. 4K Random Read Speed 28.5MB/s
Avg. 4K Random Write Speed 77.2MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro 240GB is 42.9%. This is a relatively wide range which indicates that the SanDisk Extreme Pro 240GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 204MB/s
Avg. 4K-64Thread Mixed IO Speed 58.7MB/s

Average Bench

(Based on 4,450 samples)
Min Avg Max
372 Read 489 517
277 Write 429 496
247 Mixed 409 487
206 SusWrite 371 479
95.4% 424 MB/s
Min Avg Max
19.1 4K Read 28.5 36
39.2 4K Write 77.2 112
13.1 4K Mixed 23.9 38.9
115% 43.2 MB/s
Min Avg Max
24.2 DQ Read 204 371
60.9 DQ Write 214 331
12.7 DQ Mixed 58.7 161
85.6% 159 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
186GB free (System drive)
Firmware: X21200RL
SusWrite @10s intervals: 410 412 415 410 423 423 MB/s
Read 492
Write 452
Mixed 299
SusWrite 415
93% 415 MB/s
4K Read 34.8
4K Write 103
4K Mixed 38.3
156% 58.6 MB/s
DQ Read 358
DQ Write 320
DQ Mixed 162
170% 280 MB/s
198GB free (System drive)
Firmware: X21100RL
SusWrite @10s intervals: 341 441 451 452 463 467 MB/s
Read 477
Write 453
Mixed 334
SusWrite 436
96% 425 MB/s
4K Read 28.2
4K Write 64.1
4K Mixed 36.7
124% 43 MB/s
DQ Read 327
DQ Write 343
DQ Mixed 155
166% 275 MB/s
38GB free (System drive)
Firmware: X21200RL
SusWrite @10s intervals: 295 213 177 164 156 150 MB/s
Read 501
Write 372
Mixed 240
SusWrite 193
73% 326 MB/s
4K Read 35.6
4K Write 103
4K Mixed 43
164% 60.5 MB/s
DQ Read 363
DQ Write 285
DQ Mixed 153
161% 267 MB/s
42GB free (System drive)
Firmware: X21200RL
SusWrite @10s intervals: 349 408 392 357 312 320 MB/s
Read 427
Write 386
Mixed 268
SusWrite 356
81% 359 MB/s
4K Read 20.9
4K Write 36.6
4K Mixed 23.8
82% 27.1 MB/s
DQ Read 254
DQ Write 151
DQ Mixed 156
129% 187 MB/s
4,450 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,497,180 SSDs tested.


Approx. $237 @ launch in Jun '14
BHPhotoUS $10524 months
EbayUS $1309 mins
AmazonUS $13721 mins
Send price feedback
Typical Extreme Pro 240GB Builds (Compare 814 builds) See popular component choices, score breakdowns and rankings.
Gaming 18%
Desktop 43%
Speed boat
Workstation 25%

Motherboard: Gigabyte GA-F2A75M-D3H

EDIT WITH CUSTOM PC BUILDER Value: 41% - Average Total price: $460

Popular Extreme Pro 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.

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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.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) July 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.


Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC.

Play games? Make games? It’s time to get Extreme...

Added 4 years ago.


6 months ago.


excellent performance and 10 year warranty.—Nov '14


i ran several benchmarks on several ssds, this sandisk performs best at writing but only above average on reading...according to my benchmarks... i have it.—Aug '15


4 years ago.


15 months ago.

The review for this is poor considering that it is faster the Samsung Pro/Evo etc through extensive testing. The Drive is the fastest out there. See review: http://www.tweaktown.com/reviews/6471/sandisk-extreme-pro-240gb-ssd-review/index10.html

947 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 i7-8700K $340Nvidia GTX 1070 $400Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $121
Intel Core i5-8600K $225AMD RX 480 $280Samsung 850 Pro 256GB $160
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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