Average Bench: 65.4% (80th of 108)

Based on 531 user benchmarks.  Model: Unknown HMA851U6AFR6N-UH 2x4GB

Above average average bench

The Unknown HMA851U6AFR6N-UH 2x4GB averaged 34.5% 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 25.6GB/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 16.9%. 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. 16 Core Mixed IO Bench 19.2GB/s

Average Bench

(Based on 531 samples)
Min Avg Max
22.4 MC Read 25.6 28
19.4 MC Write 23.7 28.6
16.5 MC Mixed 19.2 22
65.2% 22.8 GB/s
Min Avg Max
12.8 SC Read 16.1 18.2
18 SC Write 24.5 31.5
16.2 SC Mixed 21.2 24.3
58.8% 20.6 GB/s
Min Avg Max
63.5 Latency 72.8 82.8
55% 72.8 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 26.5
MC Write 24.6
MC Mixed 19.9
68% 23.7 GB/s
SC Read 18.8
SC Write 25.9
SC Mixed 23.2
65% 22.6 GB/s
Latency 63
64% 63 ns
2 of 4 slots used
8GB DIMM DDR4 clocked @ 2400 MHz
MC Read 25.9
MC Write 23.7
MC Mixed 20.2
66% 23.3 GB/s
SC Read 16.6
SC Write 24.3
SC Mixed 22.4
60% 21.1 GB/s
Latency 67.3
59% 67.3 ns
2 of 4 slots used
8GB DIMM DDR4 2400 MHz clocked @ 2133 MHz
MC Read 24.8
MC Write 23
MC Mixed 18.2
63% 22 GB/s
SC Read 13.1
SC Write 22.1
SC Mixed 19.4
52% 18.2 GB/s
Latency 75.3
53% 75.3 ns
531 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,265,781 RAM Kits tested.

Typical HMA851U6AFR6N-UH 2x4GB Builds (Compare 2,175 builds) See popular component choices, score breakdowns and rankings.
Gaming 18%
Desktop 89%
Aircraft carrier
Workstation 52%

Motherboard: Dell OptiPlex 7050

EDIT WITH CUSTOM PC BUILDER Value: 80% - Very good Total price: $321

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.

UserBenchmark of the month

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) June 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 $335Samsung 850 Evo 250GB $101
AMD Ryzen 5 2600 $140Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback