Average Bench: 40.6% (106th of 115)

Based on 8 user benchmarks.  Model: Hynix HMA851S6AFR6N-UH 859B CT16G4SFRA32A.M16FR 20GB

Below average average bench

The Hynix HMA851S6AFR6N-UH 859B CT16G4SFRA32A.M16FR 20GB averaged 59.4% 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. 1 Core Write Bench 14.9GB/s
Avg. 16 Core Write Bench 14.9GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Hynix HMA851S6AFR6N-UH 859B CT16G4SFRA32A.M16FR 20GB is 35.8%. This is a relatively wide range which indicates that the Hynix HMA851S6AFR6N-UH 859B CT16G4SFRA32A.M16FR 20GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 10.7GB/s
Avg. Physical RAM Latency 127ns

Average Bench

(Based on 8 samples)
Min Avg Max
8.8 MC Read 14.8 22.8
9.1 MC Write 14.9 22.6
7.2 MC Mixed 12.7 19
40.4% 14.1 GB/s
Min Avg Max
5.9 SC Read 10.7 14.5
9.4 SC Write 14.9 26.1
8.1 SC Mixed 13.1 20.5
36.8% 12.9 GB/s
Min Avg Max
78.6 Latency 127 217
31.4% 127 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
2400, 3200 MHz
4096, 16384 MB
MC Read 22.8
MC Write 22.6
MC Mixed 19
61% 21.5 GB/s
SC Read 14.2
SC Write 26.1
SC Mixed 20.5
58% 20.3 GB/s
Latency 78.6
51% 78.6 ns
2133, 2133 MHz
4096, 16384 MB
MC Read 15.6
MC Write 16.5
MC Mixed 14.9
45% 15.7 GB/s
SC Read 10.4
SC Write 13.1
SC Mixed 13
35% 12.2 GB/s
Latency 124
32% 124 ns
2133, 2133 MHz
4096, 16384 MB
MC Read 12.9
MC Write 13.1
MC Mixed 12
36% 12.7 GB/s
SC Read 11.1
SC Write 13.9
SC Mixed 12.2
35% 12.4 GB/s
Latency 81.8
49% 81.8 ns
2400, 3200 MHz
4096, 16384 MB
MC Read 12.1
MC Write 12.4
MC Mixed 11
34% 11.8 GB/s
SC Read 9
SC Write 11.4
SC Mixed 11
30% 10.5 GB/s
Latency 132
30% 132 ns

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,255,537 RAM Kits tested


Popular HMA851S6AFR6N-UH 859B CT16G4SFRA32A.M16FR 20GB systems:

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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.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.


115 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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