CrucialCT275MX300SSD1
CrucialCT250BX100SSD1

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC.

Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC.

Real World Speed
Performance profile from 29,501 user samples
16,701 User Benchmarks
Best Bench: 82% 93GB free
Worst Bench: 50% 1GB free
Poor: 50% Great: 82%
SPEED RANK: 430th / 921
12,800 User Benchmarks
Best Bench: 100% 26GB free
Worst Bench: 63% 142GB free
Poor: 63% Great: 100%
SPEED RANK: 192nd / 921
Effective Speed
Effective SSD Speed
67.9 % 83.8 % Faster effective speed.
+24%
Read
Avg. Sequential Read Speed
464 MB/s 500 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed
296 MB/s 356 MB/s Faster write speed.
+20%
4K Read
Avg. 4K Random Read Speed
22.6 MB/s 24.9 MB/s Slightly faster random read.
+10%
4K Write
Avg. 4K Random Write Speed
57.6 MB/s 78.4 MB/s Much faster random write.
+36%
Mixed
Avg. Sequential Mixed IO Speed
304 MB/s 412 MB/s Much faster mixed IO speed.
+36%
4K Mixed
Avg. 4K Random Mixed IO Speed
16.9 MB/s 27.1 MB/s Much faster random mixed IO.
+60%
Read
Peak Sequential Read Speed
485 MB/s 524 MB/s Slightly faster peak read speed.
+8%
Write
Peak Sequential Write Speed
339 MB/s 370 MB/s Slightly faster peak write speed.
+9%
4K Read
Peak 4K Random Read Speed
27.5 MB/s 30.3 MB/s Slightly faster peak random read.
+10%
4K Write
Peak 4K Random Write Speed
80.5 MB/s 110 MB/s Much faster peak random write.
+37%
Mixed
Peak Sequential Mixed IO Speed
339 MB/s 432 MB/s Faster peak mixed IO speed.
+27%
4K Mixed
Peak 4K Random Mixed IO Speed
24.3 MB/s 37.8 MB/s Much faster peak random mixed IO.
+56%
Market Share
Based on 6,466,514 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.49 % Much higher market share.
+69%
0.29 %
Value
Value For Money
86.8 % Much better value.
+35%
64.3 %
User Rating
UBM User Rating
67 % Slightly more popular.
+8%
62 %
Price
Price (score)
$75 Much cheaper.
+44%
$135
Age
Newest
22 Months Much more recent.
+44%
39 Months
DQ Read
Peak 4K-64Thread Read Speed
230 MB/s 275 MB/s Faster peak deep queue read.
+20%
DQ Write
Peak 4K-64Thread Write Speed
219 MB/s 311 MB/s Much faster peak deep queue write.
+42%
AS-SSD Total
AS-SSD Total Score
799 Pts 1002 Pts Stronger server IO.
+25%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
40.4 MB/s 72.3 MB/s Much faster peak deep queue mixed IO.
+79%
ADQ Read
Avg. 4K-64Thread Read Speed
123 MB/s 146 MB/s Faster deep queue read.
+19%
ADQ Write
Avg. 4K-64Thread Write Speed
131 MB/s 195 MB/s Much faster deep queue write.
+49%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
26.2 MB/s 47.7 MB/s Hugely faster deep queue mixed IO.
+82%
Capacity
Capacity
275GB 250GB
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The 275GB Crucial MX300 supersedes the MX200. Unlike its predecessor, the MX300 is TLC based and therefore suffers from weak write speeds in comparison to MLC drives. The MX300 utilises a sophisticated algorithm to enable fast burst write speeds provided that there is sufficient free space on the disk but as the drive fills up write performance drops to the relatively poor levels seen on other TLC drives (similar to mechanical drives). At current prices (70 USD) the MX300 competes well with other low end drives such as the OCZ Trion, Adata SP550 and Samsung 750 EVO. As stocks build the MX300 is likely to see further price cuts, so it could become a very interesting value proposition. See the current value leaders here[Sep '16 SSDrivePro]

MORE DETAILS

The 250GB Crucial BX100 SSD is the value orientated variant of Crucial's M range of SSDs. The BX100 uses the same NAND as its premium MX200 sibling but the BX100 uses a Silicon Motion controller as opposed to the Marvel controller found in the MX range. Feature wise the BX100 is missing SLC caching and there is no hardware encryption (so security frameworks such as windows Bitlocker will operate less efficiently). In terms of I/O performance the BX100 looks promising. Comparing the BX100 and MX100 shows that the newer BX100 may be faster than its predecessor but as yet there are insufficient user benchmarks to draw any definitive conclusions. The BX100 has only just started hitting the shelves so there's plenty of room for price reductions from its already reasonable price tag. I will revisit this review when I have more performance data for the BX100. [Jan '15 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) April 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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

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CPUGPUSSD
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Intel Core i7-7700K $290Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $136
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $36Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Ultra Fit 32GB $12
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