Average Bench: 65.7% (80th of 108)

Based on 694 user benchmarks.  Model: Unknown HMA851U6AFR6N-UH 2x4GB

Above average average bench

The Unknown HMA851U6AFR6N-UH 2x4GB averaged 34.3% 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 25.7GB/s
Avg. 1 Core Write Bench 24.5GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Unknown HMA851U6AFR6N-UH 2x4GB is just 18%. This is a relatively narrow range which indicates that the Unknown HMA851U6AFR6N-UH 2x4GB performs reasonably consistently under varying real world conditions.


Avg. 1 Core Read Bench 16.1GB/s
Avg. Physical RAM Latency 72.9ns

Average Bench

(Based on 694 samples)
Min Avg Max
22.3 MC Read 25.7 28
19.4 MC Write 23.8 29.1
16.5 MC Mixed 19.3 22.1
65.5% 22.9 GB/s
Min Avg Max
12.5 SC Read 16.1 18.2
17.2 SC Write 24.5 31.7
15.9 SC Mixed 21.2 24.3
58.8% 20.6 GB/s
Min Avg Max
63.6 Latency 72.9 83.5
54.8% 72.9 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
8GB DIMM DDR4 clocked @ 2400 MHz
MC Read 26.9
MC Write 27
MC Mixed 20.2
71% 24.7 GB/s
SC Read 16.3
SC Write 26.9
SC Mixed 20.8
61% 21.3 GB/s
Latency 71.8
56% 71.8 ns
2 of 4 slots used
8GB DIMM DDR4 2400 MHz clocked @ 2133 MHz
MC Read 25.6
MC Write 23.1
MC Mixed 19.4
65% 22.7 GB/s
SC Read 16.6
SC Write 22.7
SC Mixed 22.1
58% 20.5 GB/s
Latency 66.6
60% 66.6 ns
2 of 4 slots used
8GB DIMM DDR4 clocked @ 2400 MHz
MC Read 24.4
MC Write 22.5
MC Mixed 18.8
63% 21.9 GB/s
SC Read 12.3
SC Write 20.7
SC Mixed 12.5
43% 15.2 GB/s
Latency 77.3
52% 77.3 ns
694 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 23,537,735 RAM Kits tested.

Typical HMA851U6AFR6N-UH 2x4GB Builds (Compare 2,950 builds) See popular component choices, score breakdowns and rankings.
Gaming 16%
Desktop 85%
Aircraft carrier
Workstation 48%

Motherboard: Dell OptiPlex 7050

EDIT WITH CUSTOM PC BUILDER Value: 73% - Very good Total price: $314

Popular HMA851U6AFR6N-UH 2x4GB compatible motherboards:

How Fast Is Your RAM? (Bench your build) Size up your PC in less than a minute.

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.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) January 2020 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 i5-9400F $155Nvidia GTX 1660S (Super) $228Crucial MX500 250GB $48
Intel Core i5-9600K $219Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $332Samsung 850 Pro 512GB $204
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $640SanDisk Ultra Fit 32GB $16
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