AdataASX900S3-256GM-C
CrucialCT256MX100SSD1
$116

Controller: LSI SandForce SF2281VB1-SDC. Flash Memory: Intel Micron Synchronous 25nm MLC. Release date: Q1 2012.

 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q2 2014.

Real World Speed
Performance profile from 62,494 user samples
6,726 User Benchmarks
Best Bench: 90% 238GB free
Worst Bench: 58% 1GB free
Poor: 58% Great: 90%
SPEED RANK: 542nd / 1072
55,768 User Benchmarks
Best Bench: 97% 123GB free
Worst Bench: 65% 74GB free
Poor: 65% Great: 97%
SPEED RANK: 443rd / 1072
Effective Speed
Effective SSD Speed
76.6 % 82.8 % Slightly faster effective speed.
+8%
Read
Avg. Sequential Read Speed
368 MB/s 417 MB/s Faster read speed.
+13%
Write
Avg. Sequential Write Speed
256 MB/s 318 MB/s Faster write speed.
+24%
4K Read
Avg. 4K Random Read Speed
28.3 MB/s Slightly faster random read.
+6%
26.7 MB/s
4K Write
Avg. 4K Random Write Speed
79.7 MB/s 88.7 MB/s Faster random write.
+11%
Mixed
Avg. Sequential Mixed IO Speed
270 MB/s 289 MB/s Slightly faster mixed IO speed.
+7%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.2 MB/s 37.4 MB/s Slightly faster random mixed IO.
+6%
SusWrite
Avg. Sustained Write Speed
190 MB/s 231 MB/s Faster sustained write speed.
+22%
Read
Peak Sequential Read Speed
423 MB/s 455 MB/s Slightly faster peak read speed.
+8%
Write
Peak Sequential Write Speed
298 MB/s 331 MB/s Faster peak write speed.
+11%
4K Read
Peak 4K Random Read Speed
34.7 MB/s Faster peak random read.
+14%
30.5 MB/s
4K Write
Peak 4K Random Write Speed
111 MB/s 118 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed
302 MB/s 316 MB/s +5%
4K Mixed
Peak 4K Random Mixed IO Speed
43.3 MB/s 44.2 MB/s +2%
SusWrite
Peak Sequential Sustained Write 60s Average
236 MB/s 329 MB/s Much faster peak sustained write speed.
+39%
Market Share
Based on 75,713,771 SSDs tested
Market Share
Market Share (trailing 30 days)
0.01 % 0.04 % Hugely higher market share.
+300%
Value
Value For Money
6.96 % 9.75 % Much better value.
+40%
User Rating
UBM User Rating
53 % 54 % +2%
Price
Price (score)
$164 $116 Cheaper.
+29%
Age
Newest
145 Months 118 Months More recent.
+19%
DQ Read
Peak 4K-64Thread Read Speed
298 MB/s Much faster peak deep queue read.
+30%
229 MB/s
DQ Write
Peak 4K-64Thread Write Speed
264 MB/s 312 MB/s Faster peak deep queue write.
+18%
AS-SSD Total
AS-SSD Total Score
978 Pts Slightly stronger server IO.
+5%
930 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
256 MB/s Much faster peak deep queue mixed IO.
+41%
182 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
245 MB/s Much faster deep queue read.
+35%
182 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
219 MB/s 280 MB/s Faster deep queue write.
+28%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
194 MB/s Much faster deep queue mixed IO.
+35%
144 MB/s
Capacity
Capacity
256GB 256GB
ADVERTISEMENT

The SX900 and SX910 are both Sandforce 2881 based SSDs from Adata. The only difference between them is their warranty period: 5 years for the SX910 vs 3 years for the SX900. Both drives utilize Intel-Micron 25Nm MLC so the differences must be at a "sub-atomic" level, or at least beyond the scope of the specs. Once again as with all Sandforce 2881 based drives performance is skewed in favour of reads over writes. With a peak sequential read of 510 MB/s and corresponding sequential write of 309 MB/s the SX series does not break any records but, like all SSDs, they do offer speeds way in excess of mechanical hard drives. Overall performance lags the SSD group leaders by around 40% and there are far faster, cheaper and newer (non-Sandforce) alternatives such as the Samsung 840 Evo or the Sandisk Ultra Plus available. [Jan '14 SSDrivePro]

MORE DETAILS

The Crucial MX100 is the first 16nm SSD to date. Aside from NAND, the MX100 shares the same hardware as its more expensive sibling, the M550. Comparing the MX100 and M550 shows that the two drives have similar read speeds but that the MX100 lags by nearly 50% at writing. The newer 16nm NAND reduces costs and accordingly the MX100 is the cheapest SSD (per GB) to date. In terms of performance the MX100 is a compromise which may or may not be worth making depending on individual circumstances. For typical desktop use including email, office documents and web browsing the MX100 is a great choice but power users should look elsewhere. Comparing the 250GB 840 EVO and 256GB MX100 shows that for a marginal premium, the Evo offers better write speeds. (Note: at 500GB they are more evenly matched) [Jun '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) April 2024 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]

ADVERTISEMENT

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 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 value for money 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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback