SanDiskSDSSDXP-120G-G25
$130
SanDiskSDSSDXPS-240G
 $130 

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

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

Real World Speed
Performance profile from 5,547 user samples
725 User Benchmarks
Best Bench: 90% 101GB free
Worst Bench: 56% 43GB free
Poor: 56% Great: 90%
SPEED RANK: 289th / 873
4,822 User Benchmarks
Best Bench: 107% 200GB free
Worst Bench: 62% 77GB free
Poor: 62% Great: 107%
SPEED RANK: 102nd / 873
Effective Speed
Effective SSD Speed
73 % -22% 88.9 % Faster effective speed.
+22%
Read
Avg. Sequential Read Speed
445 MB/s -10% 488 MB/s Slightly faster read speed.
+10%
Write
Avg. Sequential Write Speed
260 MB/s -63% 423 MB/s Much faster write speed.
+63%
4K Read
Avg. 4K Random Read Speed
27.4 MB/s -7% 29.2 MB/s Slightly faster random read.
+7%
4K Write
Avg. 4K Random Write Speed
75.2 MB/s -6% 79.4 MB/s Slightly faster random write.
+6%
Mixed
Avg. Sequential Mixed IO Speed
296 MB/s -43% 424 MB/s Much faster mixed IO speed.
+43%
4K Mixed
Avg. 4K Random Mixed IO Speed
19.5 MB/s -19% 23.2 MB/s Faster random mixed IO.
+19%
Read
Peak Sequential Read Speed
483 MB/s -7% 516 MB/s Slightly faster peak read speed.
+7%
Write
Peak Sequential Write Speed
316 MB/s -57% 496 MB/s Much faster peak write speed.
+57%
4K Read
Peak 4K Random Read Speed
34.7 MB/s -3% 35.7 MB/s +3%
4K Write
Peak 4K Random Write Speed
117 MB/s +1% 116 MB/s -1%
Mixed
Peak Sequential Mixed IO Speed
358 MB/s -36% 487 MB/s Much faster peak mixed IO speed.
+36%
4K Mixed
Peak 4K Random Mixed IO Speed
25.9 MB/s -17% 30.2 MB/s Faster peak random mixed IO.
+17%
Market Share
Based on 5,194,955 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % -800% 0.18 % Hugely higher market share.
+800%
Value
Value For Money
33.2 % -141% 79.8 % Hugely better value.
+141%
User Rating
UBM User Rating
54 % -19% 64 % More popular.
+19%
Price
Price (score)
$130 -19% $105 Cheaper.
+19%
Age
Newest
56 Months -23% 43 Months More recent.
+23%
DQ Read
Peak 4K-64Thread Read Speed
341 MB/s -7% 364 MB/s Slightly faster peak deep queue read.
+7%
DQ Write
Peak 4K-64Thread Write Speed
281 MB/s -15% 324 MB/s Faster peak deep queue write.
+15%
AS-SSD Total
AS-SSD Total Score
1,075 Pts -10% 1,183 Pts Slightly stronger server IO.
+10%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
61.9 MB/s -6% 65.4 MB/s Slightly faster peak deep queue mixed IO.
+6%
ADQ Read
Avg. 4K-64Thread Read Speed
182 MB/s -12% 203 MB/s Slightly faster deep queue read.
+12%
ADQ Write
Avg. 4K-64Thread Write Speed
178 MB/s -17% 209 MB/s Faster deep queue write.
+17%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
40.1 MB/s -12% 44.9 MB/s Slightly faster deep queue mixed IO.
+12%
Capacity
Capacity
120GB 240GB
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The 120GB Sandisk Extreme II proved to be a disappointment. I was expecting the same blistering performance as I saw on its larger 240GB sibling but that proved not to be the case. Comparing the 120GB and 240GB Extreme II's reveals that the larger 240GB version has peak speed ratings that are approximately 35% faster that the 120GB Extreme II. The main weakness of the 120GB Extreme II is its sequential write speed which is just 305 MB/s vs 492 MB/s on the 240GB version. Reduced write ability at lower capacities is explained by fewer NAND modules which reduce a controllers ability to parallelize slow write operations across different memory banks. Overall the Sandisk Extreme II sits amongst the bottom 20% of performers in the 120-128GB capacity category. Several of the drives in the group test have comparable performance at both the 120 and 240 GB capacities, those drives are the ones to go for. [Feb '14 SSDrivePro]

MORE DETAILS

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]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) January 2018 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 $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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