SanDiskSDSSDHII-240G-G25
SanDiskSDSSDXPS-240G

Controller: Marvell 88SS9187. Memory: SanDisk 19nm TLC. Release date: Q3 2014.

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

Real World Speed
Performance profile from 23,158 user samples
18,260 User Benchmarks
Best Bench: 103% 223GB free
Worst Bench: 62% 110GB free (System drive)
Poor: 62% Great: 103%
SPEED RANK: 295th / 959
4,898 User Benchmarks
Best Bench: 114% 218GB free
Worst Bench: 58% 38GB free (System drive)
Poor: 58% Great: 114%
SPEED RANK: 198th / 959
Effective Speed
Effective SSD Speed
82.7 % 90.5 % Slightly faster effective speed.
+9%
Read
Avg. Sequential Read Speed
448 MB/s 452 MB/s +1%
Write
Avg. Sequential Write Speed
364 MB/s 406 MB/s Slightly faster write speed.
+12%
4K Read
Avg. 4K Random Read Speed
30.1 MB/s Slightly faster random read.
+8%
27.8 MB/s
4K Write
Avg. 4K Random Write Speed
80.8 MB/s Slightly faster random write.
+8%
75.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
247 MB/s 257 MB/s +4%
4K Mixed
Avg. 4K Random Mixed IO Speed
37 MB/s Slightly faster random mixed IO.
+13%
32.8 MB/s
SusWrite
Avg. Sustained Write Speed
169 MB/s 356 MB/s Hugely faster sustained write speed.
+111%
Read
Peak Sequential Read Speed
501 MB/s 510 MB/s +2%
Write
Peak Sequential Write Speed
470 MB/s 478 MB/s +2%
4K Read
Peak 4K Random Read Speed
39.8 MB/s Slightly faster peak random read.
+10%
36.3 MB/s
4K Write
Peak 4K Random Write Speed
120 MB/s +2% 118 MB/s
Mixed
Peak Sequential Mixed IO Speed
340 MB/s Slightly faster peak mixed IO speed.
+9%
311 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
50.8 MB/s Faster peak random mixed IO.
+17%
43.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
237 MB/s 469 MB/s Hugely faster peak sustained write speed.
+98%
Market Share
Based on 9,145,409 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.33 % Hugely higher market share.
+371%
0.07 %
Value
Value For Money
101 % +0% 101 %
User Rating
UBM User Rating
63 % 64 % +2%
Price
Price (score)
$70 Slightly cheaper.
+11%
$79
Age
Newest
49 Months Slightly more recent.
+6%
52 Months
DQ Read
Peak 4K-64Thread Read Speed
390 MB/s +3% 379 MB/s
DQ Write
Peak 4K-64Thread Write Speed
305 MB/s 340 MB/s Slightly faster peak deep queue write.
+11%
AS-SSD Total
AS-SSD Total Score
1,210 Pts 1,222 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
254 MB/s Much faster peak deep queue mixed IO.
+53%
166 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
324 MB/s Slightly faster deep queue read.
+6%
305 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
246 MB/s 271 MB/s Slightly faster deep queue write.
+10%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
204 MB/s Much faster deep queue mixed IO.
+44%
142 MB/s
Capacity
Capacity
240GB 240GB
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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

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) October 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 - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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.
  • - 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.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $380Nvidia GTX 1070 $323Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $350AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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