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 6,950 user samples
892 User Benchmarks
Best Bench: 101% 98GB free
Worst Bench: 59% 70GB free
Poor: 59% Great: 101%
SPEED RANK: 182nd / 862
6,058 User Benchmarks
Best Bench: 100% 47GB free
Worst Bench: 59% 97GB free
Poor: 59% Great: 100%
SPEED RANK: 159th / 862
Effective Speed
Effective SSD Speed
81.4 % -2% 82.7 % +2%
Read
Avg. Sequential Read Speed
452 MB/s -11% 503 MB/s Slightly faster read speed.
+11%
Write
Avg. Sequential Write Speed
365 MB/s 0% 365 MB/s 0%
4K Read
Avg. 4K Random Read Speed
27.8 MB/s +3% 26.9 MB/s -3%
4K Write
Avg. 4K Random Write Speed
79.5 MB/s Slightly faster random write.
+13%
70.5 MB/s -13%
Mixed
Avg. Sequential Mixed IO Speed
364 MB/s -3% 376 MB/s +3%
4K Mixed
Avg. 4K Random Mixed IO Speed
20.8 MB/s -14% 23.7 MB/s Slightly faster random mixed IO.
+14%
Read
Peak Sequential Read Speed
487 MB/s -8% 527 MB/s Slightly faster peak read speed.
+8%
Write
Peak Sequential Write Speed
474 MB/s Faster peak write speed.
+19%
399 MB/s -19%
4K Read
Peak 4K Random Read Speed
35.1 MB/s Slightly faster peak random read.
+7%
32.9 MB/s -7%
4K Write
Peak 4K Random Write Speed
120 MB/s Faster peak random write.
+20%
100 MB/s -20%
Mixed
Peak Sequential Mixed IO Speed
453 MB/s Slightly faster peak mixed IO speed.
+9%
415 MB/s -9%
4K Mixed
Peak 4K Random Mixed IO Speed
28.5 MB/s -20% 34.1 MB/s Faster peak random mixed IO.
+20%
Market Share
Based on 4,441,629 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % -1,000% 0.22 % Hugely higher market share.
+1,000%
Value
Value For Money
73.1 % Hugely better value.
+83%
39.9 % -83%
User Rating
UBM User Rating
63 % -8% 68 % Slightly more popular.
+8%
Price
Price (score)
$105 Much cheaper.
+58%
$250 -58%
Age
Newest
54 Months -37% 34 Months Much more recent.
+37%
DQ Read
Peak 4K-64Thread Read Speed
354 MB/s -1% 357 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
298 MB/s Slightly faster peak deep queue write.
+8%
275 MB/s -8%
AS-SSD Total
AS-SSD Total Score
1139 Pts +5% 1,089 Pts -5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
67.4 MB/s +1% 66.7 MB/s -1%
ADQ Read
Avg. 4K-64Thread Read Speed
178 MB/s +1% 177 MB/s -1%
ADQ Write
Avg. 4K-64Thread Write Speed
197 MB/s Slightly faster deep queue write.
+14%
173 MB/s -14%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
42.2 MB/s +3% 41 MB/s -3%
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) November 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 $288Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $270AMD RX 480 $240Samsung 850 Pro 256GB $110
Intel Core i5-7600K $200Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $148
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $189SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $12
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