SamsungMZ-7TE250BW
SamsungMZ-7PD256BW

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

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

Real World Speed
Performance profile from 58,934 user samples
44,440 User Benchmarks
Best Bench: 97% 50GB free
Worst Bench: 55% 119GB free
Poor: 55% Great: 97%
SPEED RANK: 201st / 857
14,494 User Benchmarks
Best Bench: 106% 606GB free
Worst Bench: 54% 131GB free
Poor: 54% Great: 106%
SPEED RANK: 168th / 857
Effective Speed
Effective SSD Speed
79.4 % -3% 82.1 % +3%
Read
Avg. Sequential Read Speed
486 MB/s 0% 486 MB/s 0%
Write
Avg. Sequential Write Speed
316 MB/s -11% 351 MB/s Slightly faster write speed.
+11%
4K Read
Avg. 4K Random Read Speed
36.5 MB/s Faster random read.
+29%
28.3 MB/s -29%
4K Write
Avg. 4K Random Write Speed
58.5 MB/s -28% 74.9 MB/s Faster random write.
+28%
Mixed
Avg. Sequential Mixed IO Speed
326 MB/s -17% 380 MB/s Faster mixed IO speed.
+17%
4K Mixed
Avg. 4K Random Mixed IO Speed
20.8 MB/s -6% 22.1 MB/s Slightly faster random mixed IO.
+6%
Read
Peak Sequential Read Speed
511 MB/s -2% 523 MB/s +2%
Write
Peak Sequential Write Speed
352 MB/s -41% 496 MB/s Much faster peak write speed.
+41%
4K Read
Peak 4K Random Read Speed
45.9 MB/s Faster peak random read.
+28%
36 MB/s -28%
4K Write
Peak 4K Random Write Speed
85.1 MB/s -37% 117 MB/s Much faster peak random write.
+37%
Mixed
Peak Sequential Mixed IO Speed
358 MB/s -42% 509 MB/s Much faster peak mixed IO speed.
+42%
4K Mixed
Peak 4K Random Mixed IO Speed
27.7 MB/s -2% 28.3 MB/s +2%
Market Share
Based on 3,517,083 SSDs tested.
Market Share
Market Share (trailing 30 days)
2.37 % Hugely higher market share.
+212%
0.76 % -212%
Value
Value For Money
62.7 % Better value.
+25%
50 % -25%
User Rating
UBM User Rating
64 % 0% 64 % 0%
Price
Price (score)
$130 Much cheaper.
+31%
$188 -31%
Age
Newest
49 Months More recent.
+16%
58 Months -16%
DQ Read
Peak 4K-64Thread Read Speed
368 MB/s -1% 371 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
240 MB/s -35% 323 MB/s Much faster peak deep queue write.
+35%
AS-SSD Total
AS-SSD Total Score
1,073 Pts -11% 1,195 Pts Slightly stronger server IO.
+11%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
84.3 MB/s -6% 89.2 MB/s Slightly faster peak deep queue mixed IO.
+6%
ADQ Read
Avg. 4K-64Thread Read Speed
188 MB/s -2% 192 MB/s +2%
ADQ Write
Avg. 4K-64Thread Write Speed
151 MB/s -21% 183 MB/s Faster deep queue write.
+21%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
50.2 MB/s -8% 54.4 MB/s Slightly faster deep queue mixed IO.
+8%
Capacity
Capacity
250GB 256GB
ADVERTISEMENT

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

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

Solid State Drive Rankings (Price vs Performance) August 2017 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: six 3D game simulations.
  • - 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.

 Frequently Asked Questions

 Best User Rated

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CPUGPUSSD
Intel Core i7-7700K $300Nvidia GTX 1070 $410Samsung 850 Evo 250GB $99
AMD Ryzen 7 1700 $280AMD RX 480 $390Samsung 850 Pro 256GB $133
Intel Core i5-7600K $212Nvidia GTX 1060-6GB $271Samsung 850 Evo 500GB $165
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $718SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $83Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $55HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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