COMPARE
Today's hottest
Amazon Ebay
deals
SSD
RANKINGS
TEST
YOUR SSD
ADD TO PC
BUILD
CrucialCT275MX300SSD1
▲ 500 ▼
  

Release date ≈ Q1 2019.

VS
▲ 552,236 ▼

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC. Release date: Q2 2016.

Effective Speed 
+12%
Real World Speed
Performance profile from 67,570 user samples
Benchmark your SSD here
29 User Benchmarks
Best Bench: 97% 427GB free (System drive)
Worst Bench: 48% 110GB free (System drive)
Poor: 48% Great: 97%
SPEED RANK: 659th / 1080
67,541 User Benchmarks
Best Bench: 95% 67GB free
Worst Bench: 53% 38GB free (System drive)
Poor: 53% Great: 95%
SPEED RANK: 500th / 1080
Effective Speed
Effective SSD Speed 		71.1 % 79.4 % Faster effective speed.
+12%
Average Score 
+8%
Read
Avg. Sequential Read Speed 		445 MB/s +3% 433 MB/s
Write
Avg. Sequential Write Speed 		393 MB/s +3% 380 MB/s
4K Read
Avg. 4K Random Read Speed 		25.6 MB/s Slightly faster random read.
+6% 		24.2 MB/s
4K Write
Avg. 4K Random Write Speed 		81.8 MB/s 84.7 MB/s +4%
Mixed
Avg. Sequential Mixed IO Speed 		343 MB/s +1% 339 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		19.3 MB/s 33.9 MB/s Much faster random mixed IO.
+76%
SusWrite
Avg. Sustained Write Speed 		244 MB/s Faster sustained write speed.
+12% 		217 MB/s
Peak Score 
+6%
Read
Peak Sequential Read Speed 		516 MB/s Slightly faster peak read speed.
+9% 		472 MB/s
Write
Peak Sequential Write Speed 		452 MB/s 478 MB/s Slightly faster peak write speed.
+6%
4K Read
Peak 4K Random Read Speed 		33.3 MB/s Faster peak random read.
+18% 		28.2 MB/s
4K Write
Peak 4K Random Write Speed 		119 MB/s +2% 117 MB/s
Mixed
Peak Sequential Mixed IO Speed 		383 MB/s 402 MB/s +5%
4K Mixed
Peak 4K Random Mixed IO Speed 		28.6 MB/s 41.4 MB/s Much faster peak random mixed IO.
+45%
SusWrite
Peak Sequential Sustained Write 60s Average 		455 MB/s Much faster peak sustained write speed.
+67% 		273 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 77,378,259 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.05 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		50 % 55 % Slightly more popular.
+10%
Nice To Haves 
+225%
Age
Newest 		68+ Months Much more recent.
+32% 		100 Months
DQ Read
Peak 4K-64Thread Read Speed 		125 MB/s 236 MB/s Hugely faster peak deep queue read.
+89%
DQ Write
Peak 4K-64Thread Write Speed 		348 MB/s Slightly faster peak deep queue write.
+7% 		326 MB/s
AS-SSD Total
AS-SSD Total Score 		840 Pts 972 Pts Stronger server IO.
+16%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		40.6 MB/s 306 MB/s Hugely faster peak deep queue mixed IO.
+654%
ADQ Read
Avg. 4K-64Thread Read Speed 		94.2 MB/s 216 MB/s Hugely faster deep queue read.
+129%
ADQ Write
Avg. 4K-64Thread Write Speed 		221 MB/s 257 MB/s Faster deep queue write.
+16%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		23.6 MB/s 245 MB/s Hugely faster deep queue mixed IO.
+938%
Specifications 
Capacity
Capacity 		500GB 275GB
Conclusion 
Average Bench 71.1%
Average Bench 79.4%

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

User Builds 
29
67,541
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Solid State Drive Rankings (Price vs Performance) October 2024 SSD Rankings

Welcome to our 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]

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

Gaming Desktop ProGaming

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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $165Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $85
Intel Core i5-13600K $200Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback