CrucialCT240BX300SSD1
AdataASX930SS3-120GM-C

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D MLC. Release date: Q3 2017.

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Controller: JMicron JMF670H. Flash Memory: Micron 16nm MLC. Release date: Q3 2015.

Real World Speed
Performance profile from 4,783 user samples
4,042 User Benchmarks
Best Bench: 116% 157GB free (System drive)
Worst Bench: 59% 96GB free (System drive)
Poor: 59% Great: 116%
SPEED RANK: 233rd / 1018
741 User Benchmarks
Best Bench: 107% 81GB free (System drive)
Worst Bench: 58% 27GB free (System drive)
Poor: 58% Great: 107%
SPEED RANK: 321st / 1018
Effective Speed
Effective SSD Speed
93.9 % Slightly faster effective speed.
+9%
86.4 %
Read
Avg. Sequential Read Speed
473 MB/s Slightly faster read speed.
+9%
434 MB/s
Write
Avg. Sequential Write Speed
406 MB/s Faster write speed.
+26%
322 MB/s
4K Read
Avg. 4K Random Read Speed
27.7 MB/s 33.9 MB/s Faster random read.
+22%
4K Write
Avg. 4K Random Write Speed
79.9 MB/s 81.5 MB/s +2%
Mixed
Avg. Sequential Mixed IO Speed
367 MB/s Faster mixed IO speed.
+19%
308 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
39.2 MB/s 44.8 MB/s Slightly faster random mixed IO.
+14%
SusWrite
Avg. Sustained Write Speed
348 MB/s Hugely faster sustained write speed.
+104%
171 MB/s
Read
Peak Sequential Read Speed
514 MB/s +1% 507 MB/s
Write
Peak Sequential Write Speed
472 MB/s Slightly faster peak write speed.
+14%
414 MB/s
4K Read
Peak 4K Random Read Speed
33.8 MB/s 43.7 MB/s Faster peak random read.
+29%
4K Write
Peak 4K Random Write Speed
124 MB/s Slightly faster peak random write.
+11%
112 MB/s
Mixed
Peak Sequential Mixed IO Speed
443 MB/s Faster peak mixed IO speed.
+23%
359 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
51.5 MB/s 58.1 MB/s Slightly faster peak random mixed IO.
+13%
SusWrite
Peak Sequential Sustained Write 60s Average
445 MB/s Hugely faster peak sustained write speed.
+116%
206 MB/s
Market Share
Based on 24,127,650 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.05 % Insanely higher market share.
+∞%
0 %
Value
Value For Money
16.9 % Much better value.
+44%
11.7 %
User Rating
UBM User Rating
54 % 57 % Slightly more popular.
+6%
Price
Price (score)
$62 $45 Cheaper.
+27%
Age
Newest
32 Months Much more recent.
+43%
56 Months
DQ Read
Peak 4K-64Thread Read Speed
317 MB/s 320 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
362 MB/s Slightly faster peak deep queue write.
+13%
321 MB/s
AS-SSD Total
AS-SSD Total Score
1,151 Pts +3% 1,113 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
298 MB/s Much faster peak deep queue mixed IO.
+54%
193 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
275 MB/s +5% 262 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
272 MB/s Slightly faster deep queue write.
+9%
249 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
240 MB/s Much faster deep queue mixed IO.
+55%
155 MB/s
Capacity
Capacity
240GB 120GB
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Crucial’s BX300 SSD is a 3D MLC entry level SSD, with debut pricing in line with the Samsung's 850 Evo, the current market leader. The BX300 is one of the faster consumer SSDs available, with a 2% performance improvement over Crucial’s older MLC based MX200 and a 25% performance improvement over the TLC based MX300 which are both from Crucial’s more expensive MX product line. MLC NAND offers more consistent performance and has higher endurance than TLC NAND. Although Samsung’s 850 Evo (which is based on proprietary TLC V-NAND) has a 10% effective speed advantage over the BX300 the BX300 wins on write consistency. The 240GB BX300 has a three year warranty or 80 Terabytes Written (TBW) compared to five years or 75 (TBW) for the 250 GB 850 Evo. This makes for an interesting choice between the BX300 and the 850 Evo. Each model has an SLC cache which is proportional to its capacity, as a result the larger capacities offer better performance. The 120 GB BX300 has a 4 GB SLC cache, the 240 GB has 8 GB and the 480 GB has 16 GB. SLC caches improve burst write performance beyond the already respectable MLC write performance. Unfortunately, at least for now, the BX300 only comes in modest capacities, with the largest being 480 GB. For write consistency, thanks to its MLC NAND, the BX300 punches well above its price point. [Nov '17 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) April 2020 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 i5-9600K $210Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i7-9700K $360Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i5-9400F $146Nvidia RTX 2070S (Super) $500Samsung 850 Pro 512GB $249
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $84SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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