SamsungMZ-7PD256BW
CrucialCT275MX300SSD1

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

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

Real World Speed
Performance profile from 63,632 user samples
30,430 User Benchmarks
Best Bench: 116% 211GB free
Worst Bench: 63% 150GB free (System drive)
Poor: 63% Great: 116%
SPEED RANK: 220th / 1003
33,202 User Benchmarks
Best Bench: 94% 188GB free
Worst Bench: 55% 212GB free
Poor: 55% Great: 94%
SPEED RANK: 420th / 1003
Effective Speed
Effective SSD Speed
93.8 % Faster effective speed.
+18%
79.2 %
Read
Avg. Sequential Read Speed
460 MB/s Slightly faster read speed.
+7%
430 MB/s
Write
Avg. Sequential Write Speed
371 MB/s 377 MB/s +2%
4K Read
Avg. 4K Random Read Speed
30.5 MB/s Faster random read.
+27%
24 MB/s
4K Write
Avg. 4K Random Write Speed
85.4 MB/s 86.7 MB/s +2%
Mixed
Avg. Sequential Mixed IO Speed
296 MB/s 332 MB/s Slightly faster mixed IO speed.
+12%
4K Mixed
Avg. 4K Random Mixed IO Speed
39 MB/s Faster random mixed IO.
+16%
33.7 MB/s
SusWrite
Avg. Sustained Write Speed
298 MB/s Much faster sustained write speed.
+39%
215 MB/s
Read
Peak Sequential Read Speed
511 MB/s Slightly faster peak read speed.
+9%
470 MB/s
Write
Peak Sequential Write Speed
485 MB/s +2% 475 MB/s
4K Read
Peak 4K Random Read Speed
36.6 MB/s Faster peak random read.
+29%
28.4 MB/s
4K Write
Peak 4K Random Write Speed
119 MB/s +1% 118 MB/s
Mixed
Peak Sequential Mixed IO Speed
359 MB/s 400 MB/s Slightly faster peak mixed IO speed.
+11%
4K Mixed
Peak 4K Random Mixed IO Speed
48.4 MB/s Faster peak random mixed IO.
+16%
41.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
475 MB/s Much faster peak sustained write speed.
+78%
267 MB/s
Market Share
Based on 15,080,002 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.21 % 0.28 % Much higher market share.
+33%
Value
Value For Money
99.2 % Slightly better value.
+7%
92.3 %
User Rating
UBM User Rating
64 % 67 % +5%
Price
Price (score)
$90 $85 Slightly cheaper.
+6%
Age
Newest
80 Months 36 Months Much more recent.
+55%
DQ Read
Peak 4K-64Thread Read Speed
386 MB/s Much faster peak deep queue read.
+64%
236 MB/s
DQ Write
Peak 4K-64Thread Write Speed
333 MB/s +2% 325 MB/s
AS-SSD Total
AS-SSD Total Score
1,228 Pts Stronger server IO.
+26%
972 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
175 MB/s 306 MB/s Much faster peak deep queue mixed IO.
+75%
ADQ Read
Avg. 4K-64Thread Read Speed
344 MB/s Much faster deep queue read.
+64%
210 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
266 MB/s +4% 257 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
146 MB/s 248 MB/s Much faster deep queue mixed IO.
+70%
Capacity
Capacity
256GB 275GB
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 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

Solid State Drive Rankings (Price vs Performance) June 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]

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 i7-8700K $355Nvidia GTX 1070 $335Samsung 850 Evo 250GB $83
AMD Ryzen 5 2600 $140Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $274Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback