SamsungMZ-7PD256BW
CrucialCT250MX500SSD1

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC. Release date: Q4 2017.

Real World Speed
Performance profile from 112,763 user samples
54,157 User Benchmarks
Best Bench: 115% 232GB free
Worst Bench: 64% 120GB free (System drive)
Poor: 64% Great: 115%
SPEED RANK: 259th / 1040
58,606 User Benchmarks
Best Bench: 123% 107GB free
Worst Bench: 67% 9GB free (System drive)
Poor: 67% Great: 123%
SPEED RANK: 223rd / 1040
Effective Speed
Effective SSD Speed
93.9 % 101 % Slightly faster effective speed.
+7%
Read
Avg. Sequential Read Speed
460 MB/s 475 MB/s +3%
Write
Avg. Sequential Write Speed
373 MB/s 387 MB/s +4%
4K Read
Avg. 4K Random Read Speed
30.9 MB/s 32.8 MB/s Slightly faster random read.
+6%
4K Write
Avg. 4K Random Write Speed
81.9 MB/s 83.3 MB/s +2%
Mixed
Avg. Sequential Mixed IO Speed
301 MB/s 387 MB/s Faster mixed IO speed.
+29%
4K Mixed
Avg. 4K Random Mixed IO Speed
38.7 MB/s 45.1 MB/s Faster random mixed IO.
+17%
SusWrite
Avg. Sustained Write Speed
316 MB/s 347 MB/s Slightly faster sustained write speed.
+10%
Read
Peak Sequential Read Speed
509 MB/s 514 MB/s +1%
Write
Peak Sequential Write Speed
482 MB/s +3% 466 MB/s
4K Read
Peak 4K Random Read Speed
36.1 MB/s 41.1 MB/s Faster peak random read.
+14%
4K Write
Peak 4K Random Write Speed
114 MB/s 115 MB/s +1%
Mixed
Peak Sequential Mixed IO Speed
366 MB/s 450 MB/s Faster peak mixed IO speed.
+23%
4K Mixed
Peak 4K Random Mixed IO Speed
46.8 MB/s 58.1 MB/s Faster peak random mixed IO.
+24%
SusWrite
Peak Sequential Sustained Write 60s Average
481 MB/s Slightly faster peak sustained write speed.
+5%
457 MB/s
Market Share
Based on 38,047,896 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.11 % 0.32 % Hugely higher market share.
+191%
Value
Value For Money
12.4 % 23.1 % Hugely better value.
+87%
User Rating
UBM User Rating
54 % 60 % More popular.
+11%
Price
Price (score)
$100 $47 Much cheaper.
+53%
Age
Newest
99 Months 37 Months Much more recent.
+63%
DQ Read
Peak 4K-64Thread Read Speed
385 MB/s 385 MB/s
DQ Write
Peak 4K-64Thread Write Speed
333 MB/s 359 MB/s Slightly faster peak deep queue write.
+8%
AS-SSD Total
AS-SSD Total Score
1,220 Pts 1255 Pts +3%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
175 MB/s 278 MB/s Much faster peak deep queue mixed IO.
+59%
ADQ Read
Avg. 4K-64Thread Read Speed
336 MB/s Slightly faster deep queue read.
+6%
317 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
253 MB/s 288 MB/s Faster deep queue write.
+14%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
143 MB/s 229 MB/s Much faster deep queue mixed IO.
+60%
Capacity
Capacity
256GB 250GB
ADVERTISEMENT

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. [Jun '13 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) January 2021 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]

ADVERTISEMENT

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 i5-10600K $257Nvidia RTX 3060-Ti $400Crucial MX500 250GB $47
Intel Core i5-9600K $200Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback