SamsungMZ-7PD256BW
SamsungMZ-7TE250BW

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC.

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC.

Real World Speed
Performance profile from 20020 user samples
5028 User Benchmarks
Best Bench: 114% 116GB free
Worst Bench: 25% 14GB free
Worst: 25% Best: 114%
SPEED RANK: 104th / 753
14992 User Benchmarks
Best Bench: 105% 171GB free
Worst Bench: 39% 66GB free
Worst: 39% Best: 105%
SPEED RANK: 145th / 753
Effective Speed
Effective SSD Speed
83.1 % +3% 80.3 % -3%
Market Share
Based on 762,089 SSDs tested.
Market Share
Market Share (trailing 30 days)
1.1 % -155% 2.8 % Hugely higher market share.
+155%
Value
Value For Money
46.9 % -39% 65.2 % Much better value.
+39%
User Rating
UBM User Rating
60 % Slightly more popular.
+5%
57 % -5%
Price
Price (score)
$208 -40% $125 Much cheaper.
+40%
Read
Avg. Sequential Read Speed
482 MB/s +1% 478 MB/s -1%
Write
Avg. Sequential Write Speed
362 MB/s Slightly faster write speed.
+8%
336 MB/s -8%
4K Read
Avg. 4K Random Read Speed
28.5 MB/s -26% 35.8 MB/s Faster random read.
+26%
4K Write
Avg. 4K Random Write Speed
76.7 MB/s Faster random write.
+27%
60.4 MB/s -27%
Mixed
Avg. Sequential Mixed IO Speed
391 MB/s Faster mixed IO speed.
+23%
318 MB/s -23%
4K Mixed
Avg. 4K Random Mixed IO Speed
21.9 MB/s Slightly faster random mixed IO.
+8%
20.2 MB/s -8%
Read
Peak Sequential Read Speed
523 MB/s +3% 509 MB/s -3%
Write
Peak Sequential Write Speed
491 MB/s Much faster peak write speed.
+31%
376 MB/s -31%
4K Read
Peak 4K Random Read Speed
36.5 MB/s -22% 44.7 MB/s Faster peak random read.
+22%
4K Write
Peak 4K Random Write Speed
117 MB/s Much faster peak random write.
+32%
88.6 MB/s -32%
Mixed
Peak Sequential Mixed IO Speed
507 MB/s Much faster peak mixed IO speed.
+42%
356 MB/s -42%
4K Mixed
Peak 4K Random Mixed IO Speed
28.8 MB/s Slightly faster peak random mixed IO.
+8%
26.7 MB/s -8%
Age
Newest
43 Months -21% 34 Months More recent.
+21%
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s +2% 368 MB/s -2%
DQ Write
Peak 4K-64Thread Write Speed
317 MB/s Faster peak deep queue write.
+24%
255 MB/s -24%
AS-SSD Total
AS-SSD Total Score
1,197 Pts Slightly stronger server IO.
+10%
1,092 Pts -10%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
91.3 MB/s Slightly faster peak deep queue mixed IO.
+9%
83.9 MB/s -9%
ADQ Read
Avg. 4K-64Thread Read Speed
195 MB/s +2% 192 MB/s -2%
ADQ Write
Avg. 4K-64Thread Write Speed
190 MB/s Faster deep queue write.
+21%
157 MB/s -21%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
52.9 MB/s Slightly faster deep queue mixed IO.
+11%
47.6 MB/s -11%
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 Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]

MORE DETAILS

Solid State Drive User Rankings (Charts) May 2016 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: DX9 and DX10 3D performance.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

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CPUGPUSSD
Intel Core i7-4790K $303Nvidia GTX 970 $290Samsung 850 Evo 250GB $85
Intel Core i7-6700K $310Nvidia GTX 980 Ti $595Samsung 850 Pro 256GB $120
Intel Core i5-6600K $237AMD R9 390 $330Samsung 850 Evo 500GB $140
HDDRAMUSB
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WD Blue 1TB (2012) $54Corsair Vengeance LPX DDR4 2666 C16 2x8GB $65SanDisk Extreme 32GB $21
Seagate Barracuda 7200.14 3TB $75G.SKILL Trident Z DDR4 3200 C16 2x8GB $88SanDisk Extreme 16GB $15
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