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 4,410 user samples
906 User Benchmarks
Best Bench: 89% 17GB free
Worst Bench: 55% 69GB free
Poor: 55% Great: 89%
SPEED RANK: 353rd / 927
3,504 User Benchmarks
Best Bench: 108% 222GB free
Worst Bench: 66% 223GB free
Poor: 66% Great: 108%
SPEED RANK: 154th / 927
Effective Speed
Effective SSD Speed
72.3 % 88.4 % Faster effective speed.
+22%
Read
Avg. Sequential Read Speed
443 MB/s 492 MB/s Slightly faster read speed.
+11%
Write
Avg. Sequential Write Speed
260 MB/s 435 MB/s Much faster write speed.
+67%
4K Read
Avg. 4K Random Read Speed
26.8 MB/s 29 MB/s Slightly faster random read.
+8%
4K Write
Avg. 4K Random Write Speed
73.7 MB/s 78 MB/s Slightly faster random write.
+6%
Mixed
Avg. Sequential Mixed IO Speed
296 MB/s 435 MB/s Much faster mixed IO speed.
+47%
4K Mixed
Avg. 4K Random Mixed IO Speed
19.4 MB/s 22 MB/s Slightly faster random mixed IO.
+13%
Read
Peak Sequential Read Speed
483 MB/s 517 MB/s Slightly faster peak read speed.
+7%
Write
Peak Sequential Write Speed
317 MB/s 498 MB/s Much faster peak write speed.
+57%
4K Read
Peak 4K Random Read Speed
34.4 MB/s 35.6 MB/s +3%
4K Write
Peak 4K Random Write Speed
113 MB/s +1% 112 MB/s
Mixed
Peak Sequential Mixed IO Speed
359 MB/s 488 MB/s Much faster peak mixed IO speed.
+36%
4K Mixed
Peak 4K Random Mixed IO Speed
25.7 MB/s 30 MB/s Faster peak random mixed IO.
+17%
Market Share
Based on 6,800,131 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 0.05 % Hugely higher market share.
+150%
Value
Value For Money
32.9 % 79.4 % Hugely better value.
+141%
User Rating
UBM User Rating
54 % 64 % More popular.
+19%
Price
Price (score)
$130 $105 Cheaper.
+19%
Age
Newest
60 Months 47 Months More recent.
+22%
DQ Read
Peak 4K-64Thread Read Speed
341 MB/s 367 MB/s Slightly faster peak deep queue read.
+8%
DQ Write
Peak 4K-64Thread Write Speed
280 MB/s 324 MB/s Faster peak deep queue write.
+16%
AS-SSD Total
AS-SSD Total Score
1,069 Pts 1,184 Pts Slightly stronger server IO.
+11%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
61.6 MB/s 65.5 MB/s Slightly faster peak deep queue mixed IO.
+6%
ADQ Read
Avg. 4K-64Thread Read Speed
183 MB/s +1% 181 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
173 MB/s 207 MB/s Faster deep queue write.
+20%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
39.7 MB/s 43.3 MB/s Slightly faster deep queue mixed IO.
+9%
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) May 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]

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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.
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
AMD Ryzen 5 1600 $167Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $292Samsung 850 Evo 500GB $140
Intel Core i7-7700K $285AMD RX 480 $300Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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