Average Bench: 55.4% (85th of 108)

Based on 157 user benchmarks.  Model: Hynix HMA851S6CJR6N-VK HMA81GS6CJR8N-VK 12GB

Average average bench

The Hynix HMA851S6CJR6N-VK HMA81GS6CJR8N-VK 12GB averaged 44.6% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 16 Core Read Bench 21.7GB/s
Avg. 1 Core Write Bench 20.6GB/s

Average consistency

The range of scores (95th - 5th percentile) for the Hynix HMA851S6CJR6N-VK HMA81GS6CJR8N-VK 12GB is 45%. This is a relatively wide range which indicates that the Hynix HMA851S6CJR6N-VK HMA81GS6CJR8N-VK 12GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 14.1GB/s
Avg. 16 Core Mixed IO Bench 15.5GB/s

Average Bench

(Based on 157 samples)
Min Avg Max
8.56 MC Read 21.7 26.5
7.7 MC Write 20.2 25.4
7.69 MC Mixed 15.5 19.1
54.7% 19.1 GB/s
Min Avg Max
5.69 SC Read 14.1 18.4
7.09 SC Write 20.6 32.7
7.59 SC Mixed 17.5 25.4
49.8% 17.4 GB/s
Min Avg Max
61.5 Latency 83.3 133
48% 83.3 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2667, 2667 MHz
4096, 8192 MB
MC Read 23.2
MC Write 21.5
MC Mixed 16.6
58% 20.4 GB/s
SC Read 15.8
SC Write 23.5
SC Mixed 19.1
56% 19.5 GB/s
Latency 63.2
63% 63.2 ns
2667, 2667 MHz
4096, 8192 MB
MC Read 23.3
MC Write 23
MC Mixed 17.1
60% 21.1 GB/s
SC Read 16.6
SC Write 22.6
SC Mixed 17.7
54% 19 GB/s
Latency 93.2
43% 93.2 ns
2400, 2400 MHz
4096, 8192 MB
MC Read 16.8
MC Write 15.8
MC Mixed 12.6
43% 15.1 GB/s
SC Read 9.4
SC Write 16.4
SC Mixed 15.2
39% 13.7 GB/s
Latency 84.1
48% 84.1 ns
2667, 2667 MHz
4096, 8192 MB
MC Read 17
MC Write 19
MC Mixed 14
48% 16.7 GB/s
SC Read 3.2
SC Write 7.1
SC Mixed 4.4
14% 4.9 GB/s
Latency 447
9% 447 ns
157 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,996,015 RAM Kits tested.

Typical HMA851S6CJR6N-VK HMA81GS6CJR8N-VK 12GB Builds (Compare 4,797 builds) See popular component choices, score breakdowns and rankings.
Gaming 15%
Desktop 59%
Workstation 38%
Jet ski

System: Asus TUF GAMING FX504GD_FX80GD


Popular HMA851S6CJR6N-VK HMA81GS6CJR8N-VK 12GB 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.
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Memory Kit Rankings (Price vs Performance) December 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

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