Average Bench: 110% (3rd of 108)

Based on 197 user benchmarks.  Model: Samsung M393A2G40DB0-CPB 8x16GB

Outstanding average bench

The Samsung M393A2G40DB0-CPB 8x16GB averaged 10.2% 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 51.5GB/s
Avg. 16 Core Mixed IO Bench 41.6GB/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 11.4GB/s
Avg. Physical RAM Latency 112ns

Average Bench

(Based on 197 samples)
Min Avg Max
26.7 MC Read 51.5 72.9
22.4 MC Write 39.6 49.6
22.5 MC Mixed 41.6 48.4
126% 44.3 GB/s
Min Avg Max
7.66 SC Read 11.4 15.2
8.2 SC Write 16.3 19.9
8.76 SC Mixed 17 22.3
42.5% 14.9 GB/s
Min Avg Max
66.7 Latency 112 147
35.7% 112 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
8 of 8 slots used
128GB RIMM DDR4 clocked @ 2133 MHz
MC Read 57.5
MC Write 42.7
MC Mixed 45.8
139% 48.7 GB/s
SC Read 9.9
SC Write 12.7
SC Mixed 15.5
36% 12.7 GB/s
Latency 101
40% 101 ns
8 of 8 slots used
128GB RIMM DDR4 clocked @ 2133 MHz
MC Read 43.4
MC Write 51
MC Mixed 43.5
131% 46 GB/s
SC Read 13.4
SC Write 19.4
SC Mixed 20.9
51% 17.9 GB/s
Latency 65.7
61% 65.7 ns
8 of 8 slots used
128GB RIMM DDR4 clocked @ 2133 MHz
MC Read 50.9
MC Write 35.7
MC Mixed 40.8
121% 42.5 GB/s
SC Read 10.8
SC Write 19
SC Mixed 17.4
45% 15.7 GB/s
Latency 87.8
46% 87.8 ns
8 of 16 slots used
128GB DIMM DDR4 2133 MHz clocked @ 1866 MHz
MC Read 46.5
MC Write 35.3
MC Mixed 37.6
114% 39.8 GB/s
SC Read 11
SC Write 4.7
SC Mixed 5.7
20% 7.13 GB/s
Latency 147
27% 147 ns
197 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,004,580 RAM Kits tested.

Typical M393A2G40DB0-CPB 8x16GB Builds (Compare 910 builds) See popular component choices, score breakdowns and rankings.
Gaming 44%
Speed boat
Desktop 86%
Aircraft carrier
Workstation 100%
Nuclear submarine

System: HP Z840 Workstation


Popular M393A2G40DB0-CPB 8x16GB systems:

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  • - 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.
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Memory Kit Rankings (Price vs Performance) July 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.


108 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 $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $252Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Ultra Fit 32GB $12
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