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 50,282 user samples
34,020 User Benchmarks
Best Bench: 117% 213GB free
Worst Bench: 58% 38GB free (System drive)
Poor: 58% Great: 117%
SPEED RANK: 228th / 1000
16,262 User Benchmarks
Best Bench: 124% 137GB free (System drive)
Worst Bench: 76% 55GB free (System drive)
Poor: 76% Great: 124%
SPEED RANK: 173rd / 1000
Effective Speed
Effective SSD Speed
92.2 % 106 % Slightly faster effective speed.
+15%
Read
Avg. Sequential Read Speed
452 MB/s 477 MB/s Slightly faster read speed.
+6%
Write
Avg. Sequential Write Speed
370 MB/s 414 MB/s Slightly faster write speed.
+12%
4K Read
Avg. 4K Random Read Speed
29.8 MB/s 34.2 MB/s Slightly faster random read.
+15%
4K Write
Avg. 4K Random Write Speed
81.9 MB/s 87.1 MB/s Slightly faster random write.
+6%
Mixed
Avg. Sequential Mixed IO Speed
292 MB/s 408 MB/s Much faster mixed IO speed.
+40%
4K Mixed
Avg. 4K Random Mixed IO Speed
37.6 MB/s 47.2 MB/s Faster random mixed IO.
+26%
SusWrite
Avg. Sustained Write Speed
310 MB/s 373 MB/s Faster sustained write speed.
+20%
Read
Peak Sequential Read Speed
509 MB/s 513 MB/s +1%
Write
Peak Sequential Write Speed
484 MB/s +4% 464 MB/s
4K Read
Peak 4K Random Read Speed
36.6 MB/s 41.7 MB/s Slightly faster peak random read.
+14%
4K Write
Peak 4K Random Write Speed
117 MB/s 119 MB/s +2%
Mixed
Peak Sequential Mixed IO Speed
359 MB/s 450 MB/s Faster peak mixed IO speed.
+25%
4K Mixed
Peak 4K Random Mixed IO Speed
47.8 MB/s 58.9 MB/s Faster peak random mixed IO.
+23%
SusWrite
Peak Sequential Sustained Write 60s Average
480 MB/s Slightly faster peak sustained write speed.
+6%
452 MB/s
Market Share
Based on 14,373,882 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.22 % 0.41 % Hugely higher market share.
+86%
Value
Value For Money
97.5 % 202 % Hugely better value.
+107%
User Rating
UBM User Rating
64 % 79 % More popular.
+23%
Price
Price (score)
$90 $40 Much cheaper.
+56%
Age
Newest
79 Months 17 Months Much more recent.
+78%
DQ Read
Peak 4K-64Thread Read Speed
384 MB/s 385 MB/s +0%
DQ Write
Peak 4K-64Thread Write Speed
334 MB/s 359 MB/s Slightly faster peak deep queue write.
+7%
AS-SSD Total
AS-SSD Total Score
1,224 Pts 1,260 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
329 MB/s 341 MB/s +4%
ADQ Write
Avg. 4K-64Thread Write Speed
261 MB/s 312 MB/s Faster deep queue write.
+20%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
139 MB/s 249 MB/s Much faster deep queue mixed IO.
+79%
Capacity
Capacity
256GB 250GB
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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) May 2019 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $356Nvidia GTX 1070 $314Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $145Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $108Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $90SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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