SamsungMZ-7PD128BW
SamsungMZ-76E250B

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

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About

Controller: Samsung MJX. Memory: Samsung 64 layer TLC V-NAND. Release date: Q1 2018.

Real World Speed
Performance profile from 137,600 user samples
23,713 User Benchmarks
Best Bench: 111% 87GB free
Worst Bench: 61% 42GB free
Poor: 61% Great: 111%
SPEED RANK: 304th / 1012
113,887 User Benchmarks
Best Bench: 129% 73GB free
Worst Bench: 75% 90GB free
Poor: 75% Great: 129%
SPEED RANK: 189th / 1012
Effective Speed
Effective SSD Speed
87.2 % 105 % Faster effective speed.
+21%
Read
Avg. Sequential Read Speed
443 MB/s 479 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed
321 MB/s 398 MB/s Faster write speed.
+24%
4K Read
Avg. 4K Random Read Speed
30.6 MB/s 39.2 MB/s Faster random read.
+28%
4K Write
Avg. 4K Random Write Speed
83.3 MB/s 95.9 MB/s Faster random write.
+15%
Mixed
Avg. Sequential Mixed IO Speed
259 MB/s 380 MB/s Much faster mixed IO speed.
+47%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.9 MB/s 49.9 MB/s Much faster random mixed IO.
+39%
SusWrite
Avg. Sustained Write Speed
253 MB/s 294 MB/s Faster sustained write speed.
+16%
Read
Peak Sequential Read Speed
496 MB/s 517 MB/s +4%
Write
Peak Sequential Write Speed
444 MB/s 493 MB/s Slightly faster peak write speed.
+11%
4K Read
Peak 4K Random Read Speed
36.5 MB/s 50.9 MB/s Much faster peak random read.
+39%
4K Write
Peak 4K Random Write Speed
116 MB/s 133 MB/s Slightly faster peak random write.
+15%
Mixed
Peak Sequential Mixed IO Speed
328 MB/s 466 MB/s Much faster peak mixed IO speed.
+42%
4K Mixed
Peak 4K Random Mixed IO Speed
44.3 MB/s 68 MB/s Much faster peak random mixed IO.
+53%
SusWrite
Peak Sequential Sustained Write 60s Average
431 MB/s Slightly faster peak sustained write speed.
+15%
376 MB/s
Market Share
Based on 20,095,342 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.09 % 1.38 % Insanely higher market share.
+1,433%
Value
Value For Money
4.8 % 21.3 % Hugely better value.
+344%
User Rating
UBM User Rating
64 % 73 % Slightly more popular.
+14%
Price
Price (score)
$160 $55 Much cheaper.
+66%
Age
Newest
86 Months 22 Months Much more recent.
+74%
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s 389 MB/s +3%
DQ Write
Peak 4K-64Thread Write Speed
328 MB/s 361 MB/s Slightly faster peak deep queue write.
+10%
AS-SSD Total
AS-SSD Total Score
1,197 Pts 1,305 Pts Slightly stronger server IO.
+9%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
155 MB/s 370 MB/s Hugely faster peak deep queue mixed IO.
+139%
ADQ Read
Avg. 4K-64Thread Read Speed
318 MB/s 342 MB/s Slightly faster deep queue read.
+8%
ADQ Write
Avg. 4K-64Thread Write Speed
233 MB/s 294 MB/s Faster deep queue write.
+26%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
121 MB/s 278 MB/s Hugely faster deep queue mixed IO.
+130%
Capacity
Capacity
128GB 250GB
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The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. [Feb '14 SSDrivePro]

MORE DETAILS

The 860 Evo is the latest mainstream SATA SSD from Samsung. The 2.5-inch version of the 860 Evo will be available in several capacities ranging from 250 GB to a staggering 4TB. It’s also available in the slimmer M.2 and mSATA form factors. The 860 Evo demonstrates marginally reduced performance compared to its popular, but now three year old predecessor, the 850 Evo. In a head to head comparison the 860 looses by a very modest 6% in terms of effective speed. The 860 Evo is based on a refinement of Samsung’s consumer grade TLC V-NAND, this time featuring 256Gb and 512 Gb 64 layer V-NAND and it also features a new "MJX" controller. The 250 GB version can reach sequential write speeds of up to 520 MB/s, dropping to 300 MB/s once the SLC cache is exhausted (the 250 GB version has a 12 GB SLC write cache). Peak sequential read speeds of 560 MB/s are achievable across the different capacities. The 250GB version has a 512 MB LPDDR4 DRAM cache. All capacities have a five year warranty, but as a testament to the enhanced reliability of this new technology, the warrantied terabytes written (TBW) has doubled from 75 TBW to 150 TBW for the 250 GB 860 Evo. [Jan '18 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) December 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 i5-9400F $148Nvidia GTX 1660S (Super) $270Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $58
Intel Core i7-9700K $369Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $65SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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