CrucialCT275MX300SSD1
CrucialCT250MX500SSD1

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

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC.

Real World Speed
Performance profile from 19,139 user samples
16,181 User Benchmarks
Best Bench: 95% 54GB free
Worst Bench: 58% 160GB free (System drive)
Poor: 58% Great: 95%
SPEED RANK: 280th / 955
2,958 User Benchmarks
Best Bench: 124% 84GB free (System drive)
Worst Bench: 74% 75GB free (System drive)
Poor: 74% Great: 124%
SPEED RANK: 138th / 955
Effective Speed
Effective SSD Speed
81.3 % 105 % Faster effective speed.
+29%
Read
Avg. Sequential Read Speed
433 MB/s 473 MB/s Slightly faster read speed.
+9%
Write
Avg. Sequential Write Speed
379 MB/s 412 MB/s Slightly faster write speed.
+9%
4K Read
Avg. 4K Random Read Speed
24.5 MB/s 34.5 MB/s Much faster random read.
+41%
4K Write
Avg. 4K Random Write Speed
91.3 MB/s Slightly faster random write.
+6%
86.5 MB/s
Mixed
Avg. Sequential Mixed IO Speed
337 MB/s 405 MB/s Faster mixed IO speed.
+20%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.1 MB/s 47.3 MB/s Much faster random mixed IO.
+35%
SusWrite
Avg. Sustained Write Speed
220 MB/s 367 MB/s Much faster sustained write speed.
+67%
Read
Peak Sequential Read Speed
470 MB/s 514 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed
477 MB/s +2% 466 MB/s
4K Read
Peak 4K Random Read Speed
28.8 MB/s 42.7 MB/s Much faster peak random read.
+48%
4K Write
Peak 4K Random Write Speed
124 MB/s +3% 120 MB/s
Mixed
Peak Sequential Mixed IO Speed
400 MB/s 450 MB/s Slightly faster peak mixed IO speed.
+12%
4K Mixed
Peak 4K Random Mixed IO Speed
42.1 MB/s 59.4 MB/s Much faster peak random mixed IO.
+41%
SusWrite
Peak Sequential Sustained Write 60s Average
265 MB/s 458 MB/s Much faster peak sustained write speed.
+73%
Market Share
Based on 7,585,287 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.47 % 0.55 % Higher market share.
+17%
Value
Value For Money
110 % 139 % Better value.
+27%
User Rating
UBM User Rating
67 % 73 % Slightly more popular.
+9%
Price
Price (score)
$70 $65 Slightly cheaper.
+7%
Age
Newest
25 Months 7 Months Much more recent.
+72%
DQ Read
Peak 4K-64Thread Read Speed
237 MB/s 385 MB/s Much faster peak deep queue read.
+62%
DQ Write
Peak 4K-64Thread Write Speed
325 MB/s 354 MB/s Slightly faster peak deep queue write.
+9%
AS-SSD Total
AS-SSD Total Score
981 Pts 1,258 Pts Stronger server IO.
+28%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
306 MB/s Slightly faster peak deep queue mixed IO.
+10%
278 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
213 MB/s 339 MB/s Much faster deep queue read.
+59%
ADQ Write
Avg. 4K-64Thread Write Speed
262 MB/s 305 MB/s Faster deep queue write.
+16%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
248 MB/s +2% 242 MB/s
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 MX500 is Crucial’s current flagship consumer SATA SSD featuring their latest second generation 64-layer 3D TLC NAND. It’s available in 250 GB, 500 GB, 1 TB and 2 TB capacities in a 2.5-inch form factor. All but the 2 TB version will also be available in M.2 (2280) form in the future. The MX500 features a Silicon Motion SM2258 controller which is a change from the Marvell 88SS1074 controller featured in the MX300 (it’s nearly two year old predecessor). Performance is around 30% better than on the MX300 which currently retails at the same price. The MX500 has an SLC cache which increases with drive capacity. Consequently, the larger capacities are better able to sustain high sequential write speeds. The 250 GB version has 250MB of SLC cache, the 500 GB has 512 MB, the 1 TB has 1 GB and the 2 TB has 2 GB. Extended sustained write performance tests show that even though speed does drop off after the cache has been exhausted, it is still maintained at very respectable levels. The MX500’s five year warranty is in line with Samsung’s 850 Evo and exceeds it in terms of endurance (just 75 TBW for the 250 GB 850 Evo versus 100 TBW for the 250 GB MX500). It doesn’t quite match up to the Samsung’s 850 Evo’s performance (effective speed 8% slower), however at current prices it is about 20% cheaper, and on balance offers better value for money. [Mar '18 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 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 - 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

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The Best.
CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i7-7700K $300AMD RX 480 $280Samsung 850 Pro 256GB $136
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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