Average Bench: 48.5% (99th of 113)

Based on 67 user benchmarks.  Model: Kingston 9905428-047.A00LF 2x4GB

Below average average bench

The Kingston 9905428-047.A00LF 2x4GB averaged 51.5% 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 17.7GB/s
Avg. 16 Core Write Bench 17.5GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Kingston 9905428-047.A00LF 2x4GB is 36%. This is a relatively wide range which indicates that the Kingston 9905428-047.A00LF 2x4GB performs inconsistently under varying real world conditions.


Avg. 1 Core Write Bench 11.6GB/s
Avg. 1 Core Read Bench 12.3GB/s

Average Bench

(Based on 67 samples)
Min Avg Max
7.84 MC Read 17.7 22
6.84 MC Write 17.5 22
9.54 MC Mixed 16.5 19.9
49.1% 17.2 GB/s
Min Avg Max
4 SC Read 12.3 17.5
3.3 SC Write 11.6 17.1
3.68 SC Mixed 12.6 18.1
34.8% 12.2 GB/s
Min Avg Max
60.5 Latency 86.5 186
46.2% 86.5 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
MC Read 21.1
MC Write 21.2
MC Mixed 18.8
58% 20.4 GB/s
SC Read 15.9
SC Write 15.5
SC Mixed 15.9
45% 15.8 GB/s
Latency 62.2
64% 62.2 ns
2 of 4 slots used
MC Read 21.6
MC Write 21.8
MC Mixed 19.6
60% 21 GB/s
SC Read 13.2
SC Write 12.8
SC Mixed 15
39% 13.7 GB/s
Latency 72
56% 72 ns
2 of 4 slots used
8GB SODIMM DDR3 clocked @ 1600 MHz
MC Read 11.3
MC Write 10.6
MC Mixed 11.4
32% 11.1 GB/s
SC Read 4.3
SC Write 3.3
SC Mixed 3.8
11% 3.8 GB/s
Latency 160
25% 160 ns
2 of 4 slots used
8GB SODIMM DDR3 clocked @ 1600 MHz
MC Read 11.6
MC Write 10.6
MC Mixed 11.6
32% 11.3 GB/s
SC Read 3.9
SC Write 3.3
SC Mixed 4.4
11% 3.87 GB/s
Latency 212
19% 212 ns
67 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,577,501 RAM Kits tested.

Typical 9905428-047.A00LF 2x4GB Builds (Compare 437 builds) See popular component choices, score breakdowns and rankings.
Gaming 6%
Tree trunk
Desktop 55%
Workstation 6%
Tree trunk

System: Alienware M14xR1

EDIT WITH CUSTOM PC BUILDER Value: 58% - Above average Total price: $244

Popular 9905428-047.A00LF 2x4GB systems:

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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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Memory Kit Rankings (Price vs Performance) November 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

 Best User Rated

The Best.
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Intel Core i7-11700K $300Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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