SanDiskSDSSDXP-240G-G25
SamsungMZ-7KE256BW

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

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

Real World Speed
Performance profile from 29,231 user samples
877 User Benchmarks
Best Bench: 101% 98GB free
Worst Bench: 60% 70GB free
Poor: 60% Great: 101%
SPEED RANK: 172nd / 860
28,354 User Benchmarks
Best Bench: 124% 211GB free
Worst Bench: 68% 60GB free
Poor: 68% Great: 124%
SPEED RANK: 58th / 860
Effective Speed
Effective SSD Speed
81.8 % -23% 100 % Faster effective speed.
+23%
Read
Avg. Sequential Read Speed
452 MB/s -11% 503 MB/s Slightly faster read speed.
+11%
Write
Avg. Sequential Write Speed
370 MB/s -19% 442 MB/s Faster write speed.
+19%
4K Read
Avg. 4K Random Read Speed
27.7 MB/s -20% 33.3 MB/s Faster random read.
+20%
4K Write
Avg. 4K Random Write Speed
79.1 MB/s -15% 90.8 MB/s Slightly faster random write.
+15%
Mixed
Avg. Sequential Mixed IO Speed
367 MB/s -25% 457 MB/s Faster mixed IO speed.
+25%
4K Mixed
Avg. 4K Random Mixed IO Speed
20.9 MB/s -68% 35.1 MB/s Much faster random mixed IO.
+68%
Read
Peak Sequential Read Speed
486 MB/s -9% 529 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed
474 MB/s -6% 503 MB/s Slightly faster peak write speed.
+6%
4K Read
Peak 4K Random Read Speed
35 MB/s -24% 43.4 MB/s Faster peak random read.
+24%
4K Write
Peak 4K Random Write Speed
120 MB/s -6% 127 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed
453 MB/s -13% 514 MB/s Slightly faster peak mixed IO speed.
+13%
4K Mixed
Peak 4K Random Mixed IO Speed
28.5 MB/s -81% 51.5 MB/s Hugely faster peak random mixed IO.
+81%
Market Share
Based on 4,121,346 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % -5,500% 1.12 % Insanely higher market share.
+5,500%
Value
Value For Money
73.4 % -12% 82.5 % Slightly better value.
+12%
User Rating
UBM User Rating
63 % -54% 97 % Much more popular.
+54%
Price
Price (score)
$105 Cheaper.
+17%
$126 -17%
Age
Newest
53 Months -26% 39 Months More recent.
+26%
DQ Read
Peak 4K-64Thread Read Speed
356 MB/s -7% 380 MB/s Slightly faster peak deep queue read.
+7%
DQ Write
Peak 4K-64Thread Write Speed
298 MB/s -15% 344 MB/s Faster peak deep queue write.
+15%
AS-SSD Total
AS-SSD Total Score
1,142 Pts -10% 1,256 Pts Slightly stronger server IO.
+10%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
67.4 MB/s -143% 164 MB/s Hugely faster peak deep queue mixed IO.
+143%
ADQ Read
Avg. 4K-64Thread Read Speed
182 MB/s -15% 209 MB/s Slightly faster deep queue read.
+15%
ADQ Write
Avg. 4K-64Thread Write Speed
199 MB/s -13% 225 MB/s Slightly faster deep queue write.
+13%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
42.5 MB/s -118% 92.6 MB/s Hugely faster deep queue mixed IO.
+118%
Capacity
Capacity
240GB 256GB
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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]

MORE DETAILS

The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) October 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]

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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $300Nvidia GTX 1070 $394Samsung 850 Evo 250GB $98
AMD Ryzen 7 1700 $280AMD RX 480 $491Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $163SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $842SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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