Average Bench: 108% (3rd of 115)

Based on 1,741 user benchmarks.  Model: Kingston KHX4000C19D4/8GX 4x8GB

Outstanding average bench

The Kingston HyperX DDR4 4000 C19 4x8GB averaged 8.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kingston HyperX DDR4 4000 C19 4x8GB near the top of the comparison list.


Avg. 16 Core Read Bench 43.4GB/s
Avg. 16 Core Write Bench 40.1GB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Kingston HyperX DDR4 4000 C19 4x8GB is 58.4%. This is a relatively wide range which indicates that the Kingston HyperX DDR4 4000 C19 4x8GB performs inconsistently under varying real world conditions.


Avg. Physical RAM Latency 64.4ns
Avg. 1 Core Read Bench 22.6GB/s

Average Bench

(Based on 1,741 samples)
Min Avg Max
28.1 MC Read 43.4 60.2
25.8 MC Write 40.1 51.7
23.3 MC Mixed 35.2 45.8
113% 39.6 GB/s
Min Avg Max
9.5 SC Read 22.6 32.4
18.1 SC Write 37.1 53
14.2 SC Mixed 31.6 42.6
87% 30.5 GB/s
Min Avg Max
49 Latency 64.4 91.4
62.1% 64.4 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
4 of 4 slots used
32GB DIMM DDR4 clocked @ 4000 MHz
MC Read 45.8
MC Write 49.2
MC Mixed 36.9
126% 44 GB/s
SC Read 20.5
SC Write 47.7
SC Mixed 32.7
96% 33.6 GB/s
Latency 53.9
74% 53.9 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 3733 MHz
MC Read 44.6
MC Write 46.7
MC Mixed 34.6
120% 42 GB/s
SC Read 19.5
SC Write 45.2
SC Mixed 29.5
90% 31.4 GB/s
Latency 50.9
78% 50.9 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2400 MHz
MC Read 27.9
MC Write 26
MC Mixed 23.7
74% 25.9 GB/s
SC Read 12.6
SC Write 26.7
SC Mixed 19.3
56% 19.5 GB/s
Latency 76.5
52% 76.5 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2400 MHz
MC Read 17.4
MC Write 15.6
MC Mixed 18.7
49% 17.2 GB/s
SC Read 9.3
SC Write 15.1
SC Mixed 10.4
33% 11.6 GB/s
Latency 84.5
47% 84.5 ns
1,741 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 58,173,993 RAM Kits tested.

Typical HyperX DDR4 4000 C19 4x8GB Builds (Compare 5,807 builds) See popular component choices, score breakdowns and rankings.
Gaming 153%
Desktop 103%
Workstation 152%

Motherboard: Gigabyte Z390 AORUS MASTER - $689

EDIT WITH CUSTOM PC BUILDER Value: 85% - Excellent Total price: $1,813

Popular HyperX DDR4 4000 C19 4x8GB compatible motherboards:

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  • - 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.
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Memory Kit Rankings (Price vs Performance) February 2023 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.


Added n/a ago.


4 months ago.

One of the gaming optimised DDR4 RAM from Kingston for Intel's chipset(s) Z490 & Z590 (using the 4th revision (released to market by 2020) of the RAM, 3rd revision differs in main timings). I'm getting solid stability on fully populated multi channel config (4x8GB) with XMP timings C19-23-23-42 @ 4000MHz.

115 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 i3-12100F $98Nvidia RTX 3060-Ti $450Samsung 850 Evo 120GB $106
Intel Core i5-12400F $160Nvidia RTX 4070-Ti $800Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $50SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3200 C16 2x8GB $49SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $417SanDisk Ultra Fit 32GB $16
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