SanDiskSDSSDXPS-240G
SanDiskSDSSDHII-240G-G25

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

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

Real World Speed
Performance profile from 23,158 user samples
4,898 User Benchmarks
Best Bench: 114% 218GB free
Worst Bench: 58% 38GB free (System drive)
Poor: 58% Great: 114%
SPEED RANK: 198th / 959
18,260 User Benchmarks
Best Bench: 103% 223GB free
Worst Bench: 62% 110GB free (System drive)
Poor: 62% Great: 103%
SPEED RANK: 295th / 959
Effective Speed
Effective SSD Speed
90.5 % Slightly faster effective speed.
+9%
82.7 %
Read
Avg. Sequential Read Speed
452 MB/s +1% 448 MB/s
Write
Avg. Sequential Write Speed
406 MB/s Slightly faster write speed.
+12%
364 MB/s
4K Read
Avg. 4K Random Read Speed
27.8 MB/s 30.1 MB/s Slightly faster random read.
+8%
4K Write
Avg. 4K Random Write Speed
75.1 MB/s 80.8 MB/s Slightly faster random write.
+8%
Mixed
Avg. Sequential Mixed IO Speed
257 MB/s +4% 247 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
32.8 MB/s 37 MB/s Slightly faster random mixed IO.
+13%
SusWrite
Avg. Sustained Write Speed
356 MB/s Hugely faster sustained write speed.
+111%
169 MB/s
Read
Peak Sequential Read Speed
510 MB/s +2% 501 MB/s
Write
Peak Sequential Write Speed
478 MB/s +2% 470 MB/s
4K Read
Peak 4K Random Read Speed
36.3 MB/s 39.8 MB/s Slightly faster peak random read.
+10%
4K Write
Peak 4K Random Write Speed
118 MB/s 120 MB/s +2%
Mixed
Peak Sequential Mixed IO Speed
311 MB/s 340 MB/s Slightly faster peak mixed IO speed.
+9%
4K Mixed
Peak 4K Random Mixed IO Speed
43.5 MB/s 50.8 MB/s Faster peak random mixed IO.
+17%
SusWrite
Peak Sequential Sustained Write 60s Average
469 MB/s Hugely faster peak sustained write speed.
+98%
237 MB/s
Market Share
Based on 9,145,955 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 0.33 % Hugely higher market share.
+450%
Value
Value For Money
101 % 101 % +0%
User Rating
UBM User Rating
64 % +2% 63 %
Price
Price (score)
$79 $70 Slightly cheaper.
+11%
Age
Newest
52 Months 49 Months Slightly more recent.
+6%
DQ Read
Peak 4K-64Thread Read Speed
379 MB/s 390 MB/s +3%
DQ Write
Peak 4K-64Thread Write Speed
340 MB/s Slightly faster peak deep queue write.
+11%
305 MB/s
AS-SSD Total
AS-SSD Total Score
1,222 Pts +1% 1,210 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
166 MB/s 254 MB/s Much faster peak deep queue mixed IO.
+53%
ADQ Read
Avg. 4K-64Thread Read Speed
305 MB/s 324 MB/s Slightly faster deep queue read.
+6%
ADQ Write
Avg. 4K-64Thread Write Speed
271 MB/s Slightly faster deep queue write.
+10%
246 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
142 MB/s 204 MB/s Much faster deep queue mixed IO.
+44%
Capacity
Capacity
240GB 240GB
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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]

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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]

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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 $350Samsung 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 $160SanDisk Ultra Fit 32GB $12
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