Average Bench: 97.4% (10th of 113)

Based on 2,121 user benchmarks.  Model: Kingston KHX4000C19D4/8GX 2x8GB

Excellent average bench

The Kingston HyperX DDR4 4000 C19 2x8GB averaged just 2.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Kingston HyperX DDR4 4000 C19 2x8GB near the top of the comparison list.


Avg. 16 Core Read Bench 37.9GB/s
Avg. 16 Core Write Bench 35.9GB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Kingston HyperX DDR4 4000 C19 2x8GB is 57.1%. This is a relatively wide range which indicates that the Kingston HyperX DDR4 4000 C19 2x8GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 21.9GB/s
Avg. Physical RAM Latency 63.1ns

Average Bench

(Based on 2,121 samples)
Min Avg Max
26.2 MC Read 37.9 50.7
18 MC Write 35.9 51.6
19.5 MC Mixed 30.3 38.4
99.2% 34.7 GB/s
Min Avg Max
15.7 SC Read 21.9 28.4
17.4 SC Write 35.7 51.4
20.1 SC Mixed 31.2 39.6
84.5% 29.6 GB/s
Min Avg Max
45.8 Latency 63.1 91.1
63.4% 63.1 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 DDR4 clocked @ 4000 MHz
MC Read 50.5
MC Write 46
MC Mixed 33.1
123% 43.2 GB/s
SC Read 24.8
SC Write 45.3
SC Mixed 35.2
100% 35.1 GB/s
Latency 43.1
93% 43.1 ns
2,121 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 34,005,233 RAM Kits tested.

Typical HyperX DDR4 4000 C19 2x8GB Builds (Compare 10,584 builds) See popular component choices, score breakdowns and rankings.
Gaming 116%
Desktop 102%
Workstation 109%

Motherboard: Asus ROG STRIX Z390-F GAMING - $290

EDIT WITH CUSTOM PC BUILDER Value: 69% - Good Total price: $1,169

Popular HyperX DDR4 4000 C19 2x8GB compatible motherboards:

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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.

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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) October 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 $185Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $142Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $275Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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