Average Bench: 109% (4th of 105)

Based on 143 user benchmarks.  Model: Samsung M393A2G40DB0-CPB 8x16GB

Outstanding average bench

The Samsung M393A2G40DB0-CPB 8x16GB averaged 8.7% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung M393A2G40DB0-CPB 8x16GB near the top of the comparison list.


Avg. 16 Core Read Bench 51GB/s
Avg. 16 Core Mixed IO Bench 41.1GB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung M393A2G40DB0-CPB 8x16GB is 55.8%. This is a relatively wide range which indicates that the Samsung M393A2G40DB0-CPB 8x16GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 11.3GB/s
Avg. Physical RAM Latency 93.9ns

Average Bench

(Based on 143 samples)
Min Avg Max
27.1 MC Read 51 66.5
22 MC Write 38.9 49
21.8 MC Mixed 41.1 48.3
125% 43.7 GB/s
Min Avg Max
7.74 SC Read 11.3 15.1
7.4 SC Write 16 19.9
8.58 SC Mixed 16.9 22.5
42.1% 14.7 GB/s
Min Avg Max
66.8 Latency 93.9 153
42.6% 93.9 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
8 of 16 slots used
128GB DIMM DDR4 clocked @ 2133 MHz
MC Read 57.1
MC Write 42.8
MC Mixed 45.7
139% 48.5 GB/s
SC Read 12.1
SC Write 14.3
SC Mixed 18.1
42% 14.8 GB/s
Latency 74
54% 74 ns
8 of 16 slots used
128GB DIMM DDR4 clocked @ 2133 MHz
MC Read 54.6
MC Write 42.3
MC Mixed 44.2
134% 47 GB/s
SC Read 10.9
SC Write 14.4
SC Mixed 16.3
40% 13.9 GB/s
Latency 84.9
47% 84.9 ns
8 of 16 slots used
128GB DIMM DDR4 clocked @ 2133 MHz
MC Read 48.9
MC Write 35.5
MC Mixed 38.4
117% 40.9 GB/s
SC Read 12.3
SC Write 19.9
SC Mixed 19.2
49% 17.1 GB/s
Latency 78.8
51% 78.8 ns
143 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 13,270,380 RAM Kits tested.

Typical M393A2G40DB0-CPB 8x16GB Builds (Compare 648 builds) See popular component choices, score breakdowns and rankings.
Gaming 44%
Speed boat
Desktop 86%
Aircraft carrier
Workstation 100%

System: HP Z840 Workstation


Popular M393A2G40DB0-CPB 8x16GB systems:

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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.

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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.
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  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) January 2019 RAM Rankings.

We calculate effective RAM speed which measures performance for typical desktop users. Effective speed is adjusted by current cost per GB to yield value for money. 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 Memory Kits. [RAMPro]


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.


105 Memory Kits (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different RAM Kits perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i7-8700K $365Nvidia GTX 1070 $350Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $159Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $100
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $124SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $800SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $133SanDisk Ultra Fit 32GB $12
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