SanDiskSDSSDXPS-240G
CrucialCT275MX300SSD1

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

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC. Release date: Q2 2016.

Real World Speed
Performance profile from 29,448 user samples
5,672 User Benchmarks
Best Bench: 116% 192GB free (System drive)
Worst Bench: 57% 19GB free (System drive)
Poor: 57% Great: 116%
SPEED RANK: 234th / 992
23,776 User Benchmarks
Best Bench: 95% 147GB free (System drive)
Worst Bench: 55% 111GB free
Poor: 55% Great: 95%
SPEED RANK: 384th / 992
Effective Speed
Effective SSD Speed
91.2 % Slightly faster effective speed.
+13%
80.6 %
Read
Avg. Sequential Read Speed
457 MB/s Slightly faster read speed.
+6%
430 MB/s
Write
Avg. Sequential Write Speed
412 MB/s +5% 393 MB/s
4K Read
Avg. 4K Random Read Speed
28.5 MB/s Faster random read.
+17%
24.4 MB/s
4K Write
Avg. 4K Random Write Speed
76.2 MB/s 87.9 MB/s Faster random write.
+15%
Mixed
Avg. Sequential Mixed IO Speed
258 MB/s 339 MB/s Much faster mixed IO speed.
+31%
4K Mixed
Avg. 4K Random Mixed IO Speed
32.9 MB/s 34.4 MB/s +5%
SusWrite
Avg. Sustained Write Speed
357 MB/s Much faster sustained write speed.
+61%
222 MB/s
Read
Peak Sequential Read Speed
512 MB/s Slightly faster peak read speed.
+8%
472 MB/s
Write
Peak Sequential Write Speed
482 MB/s +1% 477 MB/s
4K Read
Peak 4K Random Read Speed
36.4 MB/s Faster peak random read.
+28%
28.5 MB/s
4K Write
Peak 4K Random Write Speed
120 MB/s 121 MB/s +1%
Mixed
Peak Sequential Mixed IO Speed
302 MB/s 401 MB/s Much faster peak mixed IO speed.
+33%
4K Mixed
Peak 4K Random Mixed IO Speed
43.9 MB/s Slightly faster peak random mixed IO.
+6%
41.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
474 MB/s Much faster peak sustained write speed.
+78%
266 MB/s
Market Share
Based on 13,031,166 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 0.28 % Hugely higher market share.
+367%
Value
Value For Money
101 % Slightly better value.
+8%
93.9 %
User Rating
UBM User Rating
64 % 67 % +5%
Price
Price (score)
$79 Slightly cheaper.
+7%
$85
Age
Newest
57 Months 33 Months Much more recent.
+42%
DQ Read
Peak 4K-64Thread Read Speed
378 MB/s Much faster peak deep queue read.
+60%
236 MB/s
DQ Write
Peak 4K-64Thread Write Speed
339 MB/s +4% 326 MB/s
AS-SSD Total
AS-SSD Total Score
1,222 Pts Stronger server IO.
+25%
977 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
165 MB/s 306 MB/s Hugely faster peak deep queue mixed IO.
+85%
ADQ Read
Avg. 4K-64Thread Read Speed
307 MB/s Much faster deep queue read.
+45%
212 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
269 MB/s +0% 268 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
145 MB/s 251 MB/s Much faster deep queue mixed IO.
+73%
Capacity
Capacity
240GB 275GB
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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]

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) March 2019 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 $370Nvidia GTX 1070 $370Samsung 850 Evo 250GB $75
AMD Ryzen 5 1600 $122Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $716SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $110SanDisk Ultra Fit 32GB $12
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