Average Bench: 46.2% (100th of 113)

Based on 96 user benchmarks.  Model: Corsair CM4X16GE2666C18S2 1x16GB

Below average average bench

The Corsair CM4X16GE2666C18S2 1x16GB averaged 53.7% 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 76.4ns
Avg. 1 Core Write Bench 16.8GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Corsair CM4X16GE2666C18S2 1x16GB is just 11.1%. This is a relatively narrow range which indicates that the Corsair CM4X16GE2666C18S2 1x16GB performs reasonably consistently under varying real world conditions.


Avg. 16 Core Mixed IO Bench 13.3GB/s
Avg. 1 Core Read Bench 13.7GB/s

Average Bench

(Based on 96 samples)
Min Avg Max
13.6 MC Read 16.5 17.7
14.1 MC Write 16.5 17.2
11.3 MC Mixed 13.3 14.2
44.2% 15.5 GB/s
Min Avg Max
10.9 SC Read 13.7 15.5
12.6 SC Write 16.8 18.2
11.6 SC Mixed 15.2 17
43.6% 15.2 GB/s
Min Avg Max
60.7 Latency 76.4 117
52.4% 76.4 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
1 of 4 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
MC Read 17.6
MC Write 16.5
MC Mixed 13.6
45% 15.9 GB/s
SC Read 14.3
SC Write 17.7
SC Mixed 16
46% 16 GB/s
Latency 61.5
65% 61.5 ns
1 of 4 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
MC Read 16.5
MC Write 16.5
MC Mixed 13.2
44% 15.4 GB/s
SC Read 13.6
SC Write 16.5
SC Mixed 14.8
43% 15 GB/s
Latency 66
61% 66 ns
1 of 4 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
MC Read 16.5
MC Write 15.9
MC Mixed 13.2
43% 15.2 GB/s
SC Read 12.5
SC Write 16.7
SC Mixed 14.8
42% 14.7 GB/s
Latency 61.1
66% 61.1 ns
96 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,914,644 RAM Kits tested.

Typical CM4X16GE2666C18S2 1x16GB Builds (Compare 150 builds) See popular component choices, score breakdowns and rankings.
Gaming 11%
Tree trunk
Desktop 79%
Workstation 10%
Tree trunk

System: Schenkertechnologiesgmbh XMG FUSION 15 (XFU15L19)

EDIT WITH CUSTOM PC BUILDER Value: 85% - Excellent Total price: $160

Popular CM4X16GE2666C18S2 1x16GB systems:

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  • - CPU tests include: integer, floating and string.
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  • - Drive tests include: read, write, sustained write and mixed IO.
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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 $199Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $143Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk 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 $649SanDisk Extreme 16GB $28
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