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PlextorPX-256M6Pro
CrucialCT4000MX500SSD1
▲ 506 ▼

Release date ≈ Q3 2014.

VS
▲ 506 ▼

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC. Release date ≈ Q4 2021.

Effective Speed 
+6%
Real World Speed
Performance profile from 2,751 user samples
Benchmark your SSD here
927 User Benchmarks
Best Bench: 111% 36GB free
Worst Bench: 66% 183GB free (System drive)
Poor: 66% Great: 111%
SPEED RANK: 286th / 1072
1,824 User Benchmarks
Best Bench: 119% 2TB free
Worst Bench: 72% 1TB free
Poor: 72% Great: 119%
SPEED RANK: 257th / 1072
Effective Speed
Effective SSD Speed 		94.1 % 99.7 % Slightly faster effective speed.
+6%
Average Score 
+8%
Read
Avg. Sequential Read Speed 		448 MB/s Much faster read speed.
+31% 		341 MB/s
Write
Avg. Sequential Write Speed 		397 MB/s 398 MB/s +0%
4K Read
Avg. 4K Random Read Speed 		29.6 MB/s 33.3 MB/s Faster random read.
+12%
4K Write
Avg. 4K Random Write Speed 		71.2 MB/s 82.8 MB/s Faster random write.
+16%
Mixed
Avg. Sequential Mixed IO Speed 		278 MB/s 349 MB/s Faster mixed IO speed.
+26%
4K Mixed
Avg. 4K Random Mixed IO Speed 		35.9 MB/s 45.9 MB/s Faster random mixed IO.
+28%
SusWrite
Avg. Sustained Write Speed 		379 MB/s 405 MB/s Slightly faster sustained write speed.
+7%
Peak Score 
+9%
Read
Peak Sequential Read Speed 		503 MB/s Much faster peak read speed.
+32% 		382 MB/s
Write
Peak Sequential Write Speed 		457 MB/s 469 MB/s +3%
4K Read
Peak 4K Random Read Speed 		36.3 MB/s 40 MB/s Faster peak random read.
+10%
4K Write
Peak 4K Random Write Speed 		97.4 MB/s 119 MB/s Faster peak random write.
+22%
Mixed
Peak Sequential Mixed IO Speed 		313 MB/s 384 MB/s Faster peak mixed IO speed.
+23%
4K Mixed
Peak 4K Random Mixed IO Speed 		44.8 MB/s 58.8 MB/s Much faster peak random mixed IO.
+31%
SusWrite
Peak Sequential Sustained Write 60s Average 		441 MB/s 464 MB/s Slightly faster peak sustained write speed.
+5%
Value & Sentiment 
+∞%
Market Share
Based on 75,735,921 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.01 % Insanely higher market share.
+∞%
Value
Value For Money 		11.5 % 45.2 % Hugely better value.
+292%
User Rating
UBM User Rating 		50 % 50 %
Price
Price (score) 		$110 Much cheaper.
+63% 		$300
Nice To Haves 
+3%
Age
Newest 		115+ Months 30+ Months Much more recent.
+74%
DQ Read
Peak 4K-64Thread Read Speed 		384 MB/s Slightly faster peak deep queue read.
+8% 		356 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		345 MB/s 364 MB/s Slightly faster peak deep queue write.
+6%
AS-SSD Total
AS-SSD Total Score 		1,210 Pts +0% 1,206 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		226 MB/s Much faster peak deep queue mixed IO.
+56% 		145 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		327 MB/s +3% 318 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		276 MB/s 293 MB/s Slightly faster deep queue write.
+6%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		188 MB/s Much faster deep queue mixed IO.
+39% 		135 MB/s
Specifications 
Capacity
Capacity 		256GB 4TB
User Builds 
927
1,824
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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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]

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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 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
The Best.
CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial 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
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