Average Bench: 58% (88th of 113)

Based on 618 user benchmarks.  Model: Hynix HMA851S6CJR6N-VK HMA851S6JJR6N-VK 8GB

Average average bench

The Hynix HMA851S6CJR6N-VK HMA851S6JJR6N-VK 8GB averaged 41.9% 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 22.6GB/s
Avg. 1 Core Write Bench 22.3GB/s

Average consistency

The range of scores (95th - 5th percentile) for the Hynix HMA851S6CJR6N-VK HMA851S6JJR6N-VK 8GB is 47.4%. This is a relatively wide range which indicates that the Hynix HMA851S6CJR6N-VK HMA851S6JJR6N-VK 8GB performs inconsistently under varying real world conditions.


Avg. Physical RAM Latency 118ns
Avg. 1 Core Read Bench 14.6GB/s

Average Bench

(Based on 618 samples)
Min Avg Max
7.3 MC Read 22.6 28.9
7.3 MC Write 20.2 26.5
12.6 MC Mixed 18.8 25.8
58.7% 20.5 GB/s
Min Avg Max
6.1 SC Read 14.6 20.6
7.2 SC Write 22.3 31.5
9.7 SC Mixed 18.7 24.3
53% 18.5 GB/s
Min Avg Max
69.3 Latency 118 229
33.9% 118 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2667, 2667 MHz
4096, 4096 MB
MC Read 26.9
MC Write 21.6
MC Mixed 16.2
62% 21.6 GB/s
SC Read 16
SC Write 26.1
SC Mixed 19.7
59% 20.6 GB/s
Latency 65.8
61% 65.8 ns
2667, 2667 MHz
4096, 4096 MB
MC Read 6.5
MC Write 13.9
MC Mixed 18.7
37% 13 GB/s
SC Read 4.7
SC Write 6.3
SC Mixed 10.5
20% 7.17 GB/s
Latency 276
14% 276 ns
2667, 2667 MHz
4096, 4096 MB
MC Read 4.5
MC Write 4.6
MC Mixed 8.1
16% 5.73 GB/s
SC Read 3.5
SC Write 4.3
SC Mixed 5.8
13% 4.53 GB/s
Latency 99.1
40% 99.1 ns
618 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,825,350 RAM Kits tested.


Popular HMA851S6CJR6N-VK HMA851S6JJR6N-VK 8GB 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
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Memory Kit Rankings (Price vs Performance) September 2021 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.


113 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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