SanDiskSDSSDXP-240G-G25
CrucialCT250MX200SSD1

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

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC.

Real World Speed
Performance profile from 5,268 user samples
648 User Benchmarks
Best Bench: 101% 98GB free
Worst Bench: 60% 44GB free
Poor: 60% Great: 101%
SPEED RANK: 168th / 853
4,620 User Benchmarks
Best Bench: 101% 108GB free
Worst Bench: 63% 60GB free
Poor: 63% Great: 101%
SPEED RANK: 142nd / 853
Effective Speed
Effective SSD Speed
81.9 % -2% 83.3 % +2%
Read
Avg. Sequential Read Speed
450 MB/s -12% 505 MB/s Slightly faster read speed.
+12%
Write
Avg. Sequential Write Speed
367 MB/s -1% 369 MB/s +1%
4K Read
Avg. 4K Random Read Speed
28 MB/s +3% 27.1 MB/s -3%
4K Write
Avg. 4K Random Write Speed
81.4 MB/s Slightly faster random write.
+14%
71.7 MB/s -14%
Mixed
Avg. Sequential Mixed IO Speed
367 MB/s -2% 376 MB/s +2%
4K Mixed
Avg. 4K Random Mixed IO Speed
20.9 MB/s -16% 24.2 MB/s Faster random mixed IO.
+16%
Read
Peak Sequential Read Speed
485 MB/s -9% 528 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed
472 MB/s Faster peak write speed.
+18%
399 MB/s -18%
4K Read
Peak 4K Random Read Speed
35.5 MB/s Slightly faster peak random read.
+8%
32.9 MB/s -8%
4K Write
Peak 4K Random Write Speed
121 MB/s Faster peak random write.
+16%
104 MB/s -16%
Mixed
Peak Sequential Mixed IO Speed
455 MB/s Slightly faster peak mixed IO speed.
+10%
415 MB/s -10%
4K Mixed
Peak 4K Random Mixed IO Speed
28.5 MB/s -20% 34.2 MB/s Faster peak random mixed IO.
+20%
Market Share
Based on 3,284,678 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.04 % -650% 0.3 % Hugely higher market share.
+650%
Value
Value For Money
73.5 % Better value.
+28%
57.3 % -28%
User Rating
UBM User Rating
63 % -6% 67 % Slightly more popular.
+6%
Price
Price (score)
$105 Much cheaper.
+33%
$156 -33%
Age
Newest
50 Months -40% 30 Months Much more recent.
+40%
DQ Read
Peak 4K-64Thread Read Speed
357 MB/s +1% 355 MB/s -1%
DQ Write
Peak 4K-64Thread Write Speed
299 MB/s Slightly faster peak deep queue write.
+8%
278 MB/s -8%
AS-SSD Total
AS-SSD Total Score
1,146 Pts +5% 1,093 Pts -5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
67.3 MB/s +1% 66.8 MB/s -1%
ADQ Read
Avg. 4K-64Thread Read Speed
181 MB/s Slightly faster deep queue read.
+7%
169 MB/s -7%
ADQ Write
Avg. 4K-64Thread Write Speed
196 MB/s Slightly faster deep queue write.
+15%
171 MB/s -15%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
42.3 MB/s +2% 41.4 MB/s -2%
Capacity
Capacity
240GB 250GB
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The Sandisk Extreme II uses the 88SS9187-BLD2 controller, Marvel's latest, and Sandisk's own 19MM MLC Memory. On paper this makes an extremely good combination and the benchmarks agree. The Extreme II scored an impressive 1143 in the server orientated AS SSD Benchmark putting it amongst the more capable server drives. In terms of real world consumer performance the Extreme II also fared well achieving a real world speed index score of 570.5 MB/s, amongst the top three scores we have seen to date. The Extreme II has everything going for it apart from its price which is currently significantly above average and hurting its value rating. Because the Extreme is the newest SSD we have in our group test we expect prices will drop with time. Until then, however, there is better value to be had elsewhere. [Jun '13 SSDrivePro]

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The 250GB Crucial MX200 is successor to the hugely successful MX100. Both drives use the same NAND and controller but the new MX200 features Dynamic Write Acceleration (DWA) which is a new dynamically sized SLC cache. Samsung were the first to introduce SLC caching on the 840 Evo nearly two years ago so Crucial are somewhat late to the party. SLC caches generally only help performance in corner case real word scenarios and benchmarks. I prefer drives without SLC caches because they offer more consistent and sustainable real world IO. Comparing the MX100 and MX200 shows that the newer MX200 has a significantly faster peak write speed which is of course explained by the new DWA cache. Price is the deciding factor between the MX100 and MX200 so although the MX200 isn't priced aggressively yet, it will almost certainly move up the value rankings when retailers build stocks and subsequently cut prices. [Feb '15 SSDrivePro]

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Solid State Drive Rankings (Price vs Performance) July 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 $390Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $268AMD RX 480 $260Samsung 850 Pro 256GB $136
Intel Core i5-7600K $238Nvidia GTX 1060-6GB $239Samsung 850 Evo 500GB $159
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $83Corsair Vengeance LPX DDR4 3000 C15 2x8GB $132SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $44HyperX Fury DDR4 2133 C14 2x8GB $143SanDisk Ultra Fit 32GB $13
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