SanDiskSDSSDHII-240G-G25
SanDiskSDSSDHII-480G-G25

Controller: Marvell 88SS9187. Memory: SanDisk 19nm TLC.

Controller: Marvell 88SS9187. Memory: SanDisk 19nm TLC.

Real World Speed
Performance profile from 18,849 user samples
8,479 User Benchmarks
Best Bench: 83% 151GB free
Worst Bench: 47% 44GB free
Poor: 47% Great: 83%
SPEED RANK: 411th / 857
10,370 User Benchmarks
Best Bench: 85% 250GB free
Worst Bench: 50% 21GB free
Poor: 50% Great: 85%
SPEED RANK: 344th / 857
Effective Speed
Effective SSD Speed
65.5 % -5% 68.7 % +5%
Read
Avg. Sequential Read Speed
457 MB/s -2% 467 MB/s +2%
Write
Avg. Sequential Write Speed
243 MB/s -13% 274 MB/s Slightly faster write speed.
+13%
4K Read
Avg. 4K Random Read Speed
27.8 MB/s -0% 27.9 MB/s +0%
4K Write
Avg. 4K Random Write Speed
51.2 MB/s -0% 51.4 MB/s +0%
Mixed
Avg. Sequential Mixed IO Speed
241 MB/s -11% 267 MB/s Slightly faster mixed IO speed.
+11%
4K Mixed
Avg. 4K Random Mixed IO Speed
14.6 MB/s -4% 15.2 MB/s +4%
Read
Peak Sequential Read Speed
498 MB/s -0% 500 MB/s +0%
Write
Peak Sequential Write Speed
338 MB/s -3% 347 MB/s +3%
4K Read
Peak 4K Random Read Speed
36.5 MB/s -0% 36.6 MB/s +0%
4K Write
Peak 4K Random Write Speed
82.5 MB/s +1% 81.8 MB/s -1%
Mixed
Peak Sequential Mixed IO Speed
324 MB/s -4% 336 MB/s +4%
4K Mixed
Peak 4K Random Mixed IO Speed
21.2 MB/s +0% 21.1 MB/s -0%
Market Share
Based on 3,541,596 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.67 % 0% 0.67 % 0%
Value
Value For Money
69 % -16% 79.8 % Better value.
+16%
User Rating
UBM User Rating
63 % +3% 61 % -3%
Price
Price (score)
$85 Much cheaper.
+43%
$149 -43%
Age
Newest
35 Months 0% 35 Months 0%
DQ Read
Peak 4K-64Thread Read Speed
358 MB/s -3% 367 MB/s +3%
DQ Write
Peak 4K-64Thread Write Speed
209 MB/s 0% 209 MB/s 0%
AS-SSD Total
AS-SSD Total Score
1002 Pts -1% 1,017 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
51.2 MB/s +3% 49.9 MB/s -3%
ADQ Read
Avg. 4K-64Thread Read Speed
177 MB/s -8% 192 MB/s Slightly faster deep queue read.
+8%
ADQ Write
Avg. 4K-64Thread Write Speed
131 MB/s -5% 138 MB/s Slightly faster deep queue write.
+5%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
29.9 MB/s -2% 30.5 MB/s +2%
Capacity
Capacity
240GB 480GB
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The Sandisk Ultra II sits above Sandisk's Ultra Plus and below their Extreme Pro. The Ultra Plus would probably have been phased out completely were it not for its continued success within budget space. The Ultra II is the first Sandisk drive to utilize cheaper (and slower) TLC NAND. Similarly to the Extreme Pro, the Ultra II utilizes an nCache which operates a portion of the NAND in simulated SLC mode. This strategy also matches the one employed by Samsung's now 14 months old Evo. Comparing the Ultra II and Evo shows broad performance equivalence which given the Ultra II's 15% price discount makes it the better choice today. That said it's probably worth waiting for the release of the 850 Evo which will pack another 14 months of Samsung's market leading R&D and will probably steal the show. [Sep '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) August 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 $367Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $280AMD RX 480 $390Samsung 850 Pro 256GB $120
Intel Core i5-7600K $212Nvidia GTX 1060-6GB $280Samsung 850 Evo 500GB $165
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $718SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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