SanDiskSDSSDHII-240G-G25
CrucialCT275MX300SSD1

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

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC.

Real World Speed
Performance profile from 18,246 user samples
10,792 User Benchmarks
Best Bench: 84% 140GB free
Worst Bench: 47% 19GB free
Poor: 47% Great: 84%
SPEED RANK: 412th / 859
7,454 User Benchmarks
Best Bench: 81% 118GB free
Worst Bench: 51% 179GB free
Poor: 51% Great: 81%
SPEED RANK: 344th / 859
Effective Speed
Effective SSD Speed
65.5 % -5% 68.4 % +5%
Read
Avg. Sequential Read Speed
457 MB/s -2% 464 MB/s +2%
Write
Avg. Sequential Write Speed
252 MB/s -19% 299 MB/s Faster write speed.
+19%
4K Read
Avg. 4K Random Read Speed
27.5 MB/s Faster random read.
+22%
22.5 MB/s -22%
4K Write
Avg. 4K Random Write Speed
51 MB/s -14% 58.2 MB/s Slightly faster random write.
+14%
Mixed
Avg. Sequential Mixed IO Speed
243 MB/s -28% 311 MB/s Faster mixed IO speed.
+28%
4K Mixed
Avg. 4K Random Mixed IO Speed
14.1 MB/s -21% 17.1 MB/s Faster random mixed IO.
+21%
Read
Peak Sequential Read Speed
499 MB/s +3% 484 MB/s -3%
Write
Peak Sequential Write Speed
342 MB/s +1% 339 MB/s -1%
4K Read
Peak 4K Random Read Speed
37.6 MB/s Much faster peak random read.
+37%
27.5 MB/s -37%
4K Write
Peak 4K Random Write Speed
80.5 MB/s -1% 81.6 MB/s +1%
Mixed
Peak Sequential Mixed IO Speed
328 MB/s -3% 339 MB/s +3%
4K Mixed
Peak 4K Random Mixed IO Speed
20.9 MB/s -17% 24.4 MB/s Faster peak random mixed IO.
+17%
Market Share
Based on 3,862,640 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.61 % -10% 0.67 % Slightly higher market share.
+10%
Value
Value For Money
66 % -13% 74.6 % Slightly better value.
+13%
User Rating
UBM User Rating
63 % -3% 65 % +3%
Price
Price (score)
$90 +3% $93 -3%
Age
Newest
36 Months -58% 15 Months Much more recent.
+58%
DQ Read
Peak 4K-64Thread Read Speed
353 MB/s Much faster peak deep queue read.
+53%
230 MB/s -53%
DQ Write
Peak 4K-64Thread Write Speed
208 MB/s -6% 221 MB/s Slightly faster peak deep queue write.
+6%
AS-SSD Total
AS-SSD Total Score
994 Pts Stronger server IO.
+24%
802 Pts -24%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
51.1 MB/s Faster peak deep queue mixed IO.
+26%
40.5 MB/s -26%
ADQ Read
Avg. 4K-64Thread Read Speed
167 MB/s Much faster deep queue read.
+30%
128 MB/s -30%
ADQ Write
Avg. 4K-64Thread Write Speed
130 MB/s -6% 138 MB/s Slightly faster deep queue write.
+6%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
29.4 MB/s Slightly faster deep queue mixed IO.
+11%
26.4 MB/s -11%
Capacity
Capacity
240GB 275GB
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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 275GB Crucial MX300 supersedes the MX200. Unlike its predecessor, the MX300 is TLC based and therefore suffers from weak write speeds in comparison to MLC drives. The MX300 utilises a sophisticated algorithm to enable fast burst write speeds provided that there is sufficient free space on the disk but as the drive fills up write performance drops to the relatively poor levels seen on other TLC drives (similar to mechanical drives). At current prices (70 USD) the MX300 competes well with other low end drives such as the OCZ Trion, Adata SP550 and Samsung 750 EVO. As stocks build the MX300 is likely to see further price cuts, so it could become a very interesting value proposition. See the current value leaders here[Sep '16 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 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 $295Nvidia GTX 1070 $410Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $120
Intel Core i5-7600K $210Nvidia GTX 1060-6GB $263Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
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