Average Bench: 85.8% (40th of 108)

Based on 1,344 user benchmarks.  Model: Kingston KHX2666C16/16G 2x16GB

Very good average bench

The Kingston HyperX 2666 C16 2x16GB averaged just 14.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Kingston HyperX 2666 C16 2x16GB near the top of the comparison list.


Avg. 1 Core Write Bench 33.6GB/s
Avg. 16 Core Write Bench 32.5GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Kingston HyperX 2666 C16 2x16GB is 38.4%. This is a relatively wide range which indicates that the Kingston HyperX 2666 C16 2x16GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 19.2GB/s
Avg. Physical RAM Latency 65.9ns

Average Bench

(Based on 1,344 samples)
Min Avg Max
18.2 MC Read 32 37.2
22.5 MC Write 32.5 35.8
16.8 MC Mixed 27 32.7
87.1% 30.5 GB/s
Min Avg Max
10.1 SC Read 19.2 24.6
19 SC Write 33.6 38.5
12.4 SC Mixed 25.3 29
74.4% 26.1 GB/s
Min Avg Max
56.9 Latency 65.9 85.5
60.7% 65.9 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
32GB DIMM DDR4 clocked @ 2666 MHz
MC Read 35.4
MC Write 35.3
MC Mixed 29.1
95% 33.3 GB/s
SC Read 19.8
SC Write 38.3
SC Mixed 27.2
81% 28.4 GB/s
Latency 60.9
66% 60.9 ns
2 of 4 slots used
32GB DIMM DDR4 clocked @ 2667 MHz
MC Read 33.3
MC Write 34.8
MC Mixed 27.7
91% 31.9 GB/s
SC Read 20.2
SC Write 38.5
SC Mixed 27.4
82% 28.7 GB/s
Latency 55.7
72% 55.7 ns
2 of 4 slots used
32GB DIMM DDR4 clocked @ 2666 MHz
MC Read 31.6
MC Write 33.7
MC Mixed 27.7
89% 31 GB/s
SC Read 16.4
SC Write 32.8
SC Mixed 23
69% 24.1 GB/s
Latency 68.6
58% 68.6 ns
1,344 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 16,462,403 RAM Kits tested.

Typical HyperX 2666 C16 2x16GB Builds (Compare 738 builds) See popular component choices, score breakdowns and rankings.
Gaming 121%
Desktop 105%
Workstation 99%
Nuclear submarine

System: Asus Komplett PC

EDIT WITH CUSTOM PC BUILDER Value: 110% - Outstanding Total price: $1,075

Popular HyperX 2666 C16 2x16GB systems:

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  • - 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.
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Memory Kit Rankings (Price vs Performance) May 2019 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.


108 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 i7-8700K $356Nvidia GTX 1070 $314Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $145Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $108Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $90SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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