Average Bench: 46.2% (63rd of 70)

Based on 2 user benchmarks.  Model: Kingston 99U5471-012.A00LF 859B CT51264BA1339.C16F 8GB
Poor: 43%Average: 46.2% Great: 49%

Popular builds with this RAM

Below average average bench

The Kingston 99U5471-012.A00LF 859B CT51264BA1339.C16F 8GB averaged 53.8% 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. Physical RAM Latency 75.6ns
Avg. 16 Core Write Bench 16.6GB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this RAM perfroms. This result should be interpreted with caution.


Avg. 1 Core Read Bench 12.1GB/s
Avg. 1 Core Mixed IO Bench 13.8GB/s

Average Bench

(Based on 2 samples)
Min Avg Max
15 MC Read 16.2 17.4
15.4 MC Write 16.6 17.8
13.7 MC Mixed 14.9 16.1
45.4% 15.9 GB/s
Min Avg Max
11 SC Read 12.1 13.2
14.3 SC Write 14.4 14.5
11.7 SC Mixed 13.8 15.8
38.3% 13.4 GB/s
Min Avg Max
75.2 Latency 75.6 75.9
52.9% 75.6 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
1333, 1333 MHz
4096, 4096 MB
MC Read 17.4
MC Write 17.8
MC Mixed 16.1
49% 17.1 GB/s
SC Read 13.2
SC Write 14.5
SC Mixed 15.8
41% 14.5 GB/s
Latency 75.2
53% 75.2 ns
1067, 1067 MHz
4096, 4096 MB
MC Read 15
MC Write 15.4
MC Mixed 13.7
42% 14.7 GB/s
SC Read 11
SC Write 14.3
SC Mixed 11.7
35% 12.3 GB/s
Latency 75.9
53% 75.9 ns

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,375,470 RAM Kits tested.

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $434

Popular 99U5471-012.A00LF 859B CT51264BA1339.C16F 8GB 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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
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  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) January 2018 RAM Rankings.

Welcome to our DDR4 Memory Kit comparison. We calculate effective RAM speed which measures performance for typical desktop users. Effective speed is adjusted by cost per GB to yield value for money. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top Memory Kits. Share your opinion by voting. [RAMPro]


70 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 i7-7700K $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $224AMD RX 480 $400Samsung 850 Pro 256GB $110
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $47
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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