SanDiskSDSSDXPS-240G
CrucialCT250MX200SSD1
$134

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

 $134 

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

Real World Speed
Performance profile from 11,772 user samples
4,848 User Benchmarks
Best Bench: 107% 200GB free
Worst Bench: 62% 77GB free
Poor: 62% Great: 107%
SPEED RANK: 103rd / 873
6,924 User Benchmarks
Best Bench: 102% 161GB free
Worst Bench: 62% 203GB free
Poor: 62% Great: 102%
SPEED RANK: 159th / 873
Effective Speed
Effective SSD Speed
88.7 % Slightly faster effective speed.
+7%
82.9 % -7%
Read
Avg. Sequential Read Speed
487 MB/s -3% 503 MB/s +3%
Write
Avg. Sequential Write Speed
424 MB/s Faster write speed.
+15%
368 MB/s -15%
4K Read
Avg. 4K Random Read Speed
29.1 MB/s Slightly faster random read.
+10%
26.5 MB/s -10%
4K Write
Avg. 4K Random Write Speed
78.4 MB/s Slightly faster random write.
+12%
70.1 MB/s -12%
Mixed
Avg. Sequential Mixed IO Speed
425 MB/s Slightly faster mixed IO speed.
+13%
375 MB/s -13%
4K Mixed
Avg. 4K Random Mixed IO Speed
23.2 MB/s -3% 24 MB/s +3%
Read
Peak Sequential Read Speed
516 MB/s -2% 528 MB/s +2%
Write
Peak Sequential Write Speed
496 MB/s Faster peak write speed.
+24%
399 MB/s -24%
4K Read
Peak 4K Random Read Speed
35.7 MB/s Slightly faster peak random read.
+8%
33.1 MB/s -8%
4K Write
Peak 4K Random Write Speed
116 MB/s Slightly faster peak random write.
+15%
101 MB/s -15%
Mixed
Peak Sequential Mixed IO Speed
487 MB/s Faster peak mixed IO speed.
+17%
416 MB/s -17%
4K Mixed
Peak 4K Random Mixed IO Speed
30.2 MB/s -14% 34.5 MB/s Slightly faster peak random mixed IO.
+14%
Market Share
Based on 5,230,364 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.04 % -325% 0.17 % Hugely higher market share.
+325%
Value
Value For Money
79.6 % Better value.
+25%
63.9 % -25%
User Rating
UBM User Rating
64 % -6% 68 % Slightly more popular.
+6%
Price
Price (score)
$105 Cheaper.
+22%
$134 -22%
Age
Newest
43 Months -16% 36 Months More recent.
+16%
DQ Read
Peak 4K-64Thread Read Speed
364 MB/s +3% 355 MB/s -3%
DQ Write
Peak 4K-64Thread Write Speed
324 MB/s Faster peak deep queue write.
+16%
279 MB/s -16%
AS-SSD Total
AS-SSD Total Score
1,183 Pts Slightly stronger server IO.
+8%
1,091 Pts -8%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
65.3 MB/s -2% 66.8 MB/s +2%
ADQ Read
Avg. 4K-64Thread Read Speed
201 MB/s Slightly faster deep queue read.
+10%
183 MB/s -10%
ADQ Write
Avg. 4K-64Thread Write Speed
206 MB/s Faster deep queue write.
+20%
172 MB/s -20%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
45.5 MB/s Slightly faster deep queue mixed IO.
+10%
41.2 MB/s -10%
Capacity
Capacity
240GB 250GB
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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 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]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) January 2018 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 $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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