Average Bench: 49% (98th of 113)

Based on 767 user benchmarks.  Model: Kingston 9905403-500.A01LF 2x8GB

Below average average bench

The Kingston 9905403-500.A01LF 2x8GB averaged 50.9% 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 70.9ns
Avg. 16 Core Read Bench 17.5GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Kingston 9905403-500.A01LF 2x8GB is 33%. This is a relatively narrow range which indicates that the Kingston 9905403-500.A01LF 2x8GB performs reasonably consistently under varying real world conditions.


Avg. 1 Core Read Bench 13.5GB/s
Avg. 1 Core Mixed IO Bench 14.9GB/s

Average Bench

(Based on 767 samples)
Min Avg Max
9.1 MC Read 17.5 21.9
8.5 MC Write 17.2 22.2
7.9 MC Mixed 15.5 19.3
47.9% 16.8 GB/s
Min Avg Max
7.5 SC Read 13.5 17.5
7.94 SC Write 15.6 19.7
8.34 SC Mixed 14.9 18.8
41.8% 14.6 GB/s
Min Avg Max
57.5 Latency 70.9 87.7
56.4% 70.9 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
16GB DIMM DDR3 clocked @ 1333 MHz
MC Read 17.7
MC Write 17.3
MC Mixed 15.6
48% 16.9 GB/s
SC Read 15
SC Write 17.5
SC Mixed 16.2
46% 16.2 GB/s
Latency 64.2
62% 64.2 ns
2 of 4 slots used
16GB DIMM DDR3 clocked @ 1333 MHz
MC Read 18.1
MC Write 17.4
MC Mixed 16.3
49% 17.3 GB/s
SC Read 15
SC Write 17
SC Mixed 12.4
42% 14.8 GB/s
Latency 69.1
58% 69.1 ns
2 of 2 slots used
16GB DIMM DDR3 1333 MHz
MC Read 16.3
MC Write 17.3
MC Mixed 16
47% 16.5 GB/s
SC Read 12
SC Write 11.2
SC Mixed 11.6
33% 11.6 GB/s
Latency 80.3
50% 80.3 ns
2 of 4 slots used
16GB DIMM DDR3 1333 MHz
MC Read 8.2
MC Write 7.9
MC Mixed 7.8
23% 7.97 GB/s
SC Read 9
SC Write 9.8
SC Mixed 8.8
26% 9.2 GB/s
Latency 82.5
48% 82.5 ns
767 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 35,435,602 RAM Kits tested.

Typical 9905403-500.A01LF 2x8GB Builds (Compare 5,723 builds) See popular component choices, score breakdowns and rankings.
Gaming 42%
Speed boat
Desktop 82%
Aircraft carrier
Workstation 33%
Sail boat

Motherboard: Asus P8Z77-V LX

EDIT WITH CUSTOM PC BUILDER Value: 50% - Average Total price: $508

Popular 9905403-500.A01LF 2x8GB 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.
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  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) November 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.


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.
Intel Core i5-9600K $190Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $34
Intel Core i5-9400F $150Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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