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Corsair CMD64GX4M4A2666C15

Dominator DDR4 2666 C15 2x16GB

▲ 500 ▼

Release date ≈ Q1 2018.

Average Bench: 80.2% (58th of 115)

Based on 58 user benchmarks.  Model: Corsair Dominator CMD64GX4M4A2666C15 2x16GB
Poor: 50%Average: 80.2% Great: 98%

Popular builds with this RAM

Very good average bench

The Corsair Dominator DDR4 2666 C15 2x16GB averaged just 19.8% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair Dominator DDR4 2666 C15 2x16GB near the top of the comparison list.

Strengths

Avg. 1 Core Write Bench 30.8GB/s
Avg. 16 Core Read Bench 30GB/s

Average consistency

The range of scores (95th - 5th percentile) for the Corsair Dominator DDR4 2666 C15 2x16GB is 47.6%. This is a relatively wide range which indicates that the Corsair Dominator DDR4 2666 C15 2x16GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 18.8GB/s
Avg. Physical RAM Latency 68.9ns
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Average Bench

(Based on 58 samples)
Rank 5880.2%
Min Avg Max
16.4 MC Read 30 38.6
16.6 MC Write 29.6 36.8
14 MC Mixed 25.4 32.8
81% 28.4 GB/s
Min Avg Max
13.2 SC Read 18.8 27.8
18.3 SC Write 30.8 41.2
17.5 SC Mixed 24.9 31.8
71% 24.8 GB/s
Min Avg Max
55.5 Latency 68.9 95.4
58% 68.9 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
32GB DIMM DDR4 clocked @ 2666 MHz
90.9% Outstanding
MC Read 33.5
MC Write 35.3
MC Mixed 29
93% 32.6 GB/s
SC Read 18
SC Write 36.5
SC Mixed 26.4
77% 27 GB/s
Latency 65.2
61% 65.2 ns
2 of 4 slots used
32GB DIMM DDR4 clocked @ 2666 MHz
81.3% Excellent
MC Read 29.5
MC Write 31.7
MC Mixed 27
84% 29.4 GB/s
SC Read 16.6
SC Write 25.1
SC Mixed 24.2
63% 22 GB/s
Latency 64.5
62% 64.5 ns
2 of 2 slots used
32GB DIMM DDR4 clocked @ 2133 MHz
76% Very good
MC Read 28.1
MC Write 27.3
MC Mixed 25.6
77% 27 GB/s
SC Read 22.3
SC Write 29.9
SC Mixed 24.6
73% 25.6 GB/s
Latency 100
40% 100 ns
2 of 4 slots used
32GB DIMM DDR4 clocked @ 2133 MHz
37.3% Below average
MC Read 12.6
MC Write 13.1
MC Mixed 10.5
34% 12.1 GB/s
SC Read 12.6
SC Write 13.1
SC Mixed 12.3
36% 12.7 GB/s
Latency 73.3
55% 73.3 ns
58 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 66,986,730 RAM Kits tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical Dominator DDR4 2666 C15 2x16GB Builds (Compare 3,605 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 137%
UFO
Desktop
Desktop 96%
Nuclear submarine
Workstation
Workstation 134%
UFO

Motherboard: Asus TUF GAMING B460M-PLUS (WI-FI) - $130

CPU
Core i7-10700FIntel  $180Bench 93%, 44,448 samples852x
Core i5-10400FIntel  $99Bench 85%, 153,026 samples771x
Core i5-10400Intel  $125Bench 84%, 71,804 samples415x
GPU
RTX 3070Nvidia  $400Bench 148%, 619,642 samples477x
GTX 1660S (Super)Nvidia  $240Bench 71%, 428,800 samples375x
RTX 3060Nvidia  $275Bench 100%, 447,556 samples355x
SSD
660p NVMe PCIe M.2 1TBIntel  $74Bench 191%, 163,917 samples250x
Green 240GB (2018)WD  $42Bench 45%, 156,194 samples116x
Blue SN550 NVMe PCIe M.2 500GBWD  $68Bench 204%, 97,624 samples93x
RAM
Dominator DDR4 2666 C15 2x16GBCorsairBench 80%, 58 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 93% - Outstanding Total price: $784

Popular Dominator DDR4 2666 C15 2x16GB compatible motherboards:

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Memory Kit Rankings (Price vs Performance) April 2024 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]

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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.

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Speed Comparisons

vs Corsair Vengeance LPX DDR4 3200 C16 2x8GB
vs Corsair Vengeance LPX DDR4 3000 C15 2x8GB
vs G.SKILL Trident Z DDR4 3200 C14 4x16GB
vs HyperX Fury DDR4 2133 C14 2x8GB
vs G.SKILL Trident Z DDR4 3600 C16 2x8GB
vs Corsair Vengeance LPX DDR4 2666 C16 2x8GB
vs Corsair Vengeance LPX DDR4 2133 C13 2x8GB
vs G.SKILL Trident Z DDR4 3200 C16 2x8GB
vs G.SKILL Ripjaws 4 DDR4 2400 C14 8x16GB

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.

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $132Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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