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Corsair CMD64GX4M8A2666C15

Dominator DDR4 2666 C15 8x8GB

▲ 500 ▼

Release date ≤ Q1 2016.

Average Bench: 124% (1st of 115)

Based on 163 user benchmarks.  Model: Corsair Dominator CMD64GX4M8A2666C15 8x8GB
Poor: 91%Average: 124% Great: 152%

Popular builds with this RAM

Outstanding average bench

The Corsair Dominator DDR4 2666 C15 8x8GB averaged 23.8% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair Dominator DDR4 2666 C15 8x8GB near the top of the comparison list.

Strengths

Avg. 16 Core Read Bench 51GB/s
Avg. 16 Core Write Bench 49.6GB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Corsair Dominator DDR4 2666 C15 8x8GB is 61.4%. This is a particularly wide range which indicates that the Corsair Dominator DDR4 2666 C15 8x8GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 14.6GB/s
Avg. Physical RAM Latency 70.1ns
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Average Bench

(Based on 163 samples)
Rank 1124%
Min Avg Max
29.4 MC Read 51 65.1
43.5 MC Write 49.6 64.3
30.3 MC Mixed 46.2 59.2
140% 48.9 GB/s
Min Avg Max
7.42 SC Read 14.6 18.1
17.5 SC Write 21.6 29.4
9.8 SC Mixed 21.4 26.7
54.8% 19.2 GB/s
Min Avg Max
55.4 Latency 70.1 101
57.1% 70.1 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
8 of 8 slots used
64GB DIMM DDR4 clocked @ 2133 MHz
117% Outstanding
MC Read 49
MC Write 48.3
MC Mixed 42.6
133% 46.6 GB/s
SC Read 13.4
SC Write 19.2
SC Mixed 19.9
50% 17.5 GB/s
Latency 75.5
53% 75.5 ns
8 of 8 slots used
64GB DIMM DDR4 clocked @ 2133 MHz
117% Outstanding
MC Read 47.6
MC Write 48.6
MC Mixed 42.7
132% 46.3 GB/s
SC Read 12.9
SC Write 18.9
SC Mixed 20.4
50% 17.4 GB/s
Latency 74.9
53% 74.9 ns
8 of 8 slots used
64GB DIMM DDR4 clocked @ 2133 MHz
116% Outstanding
MC Read 49
MC Write 43.7
MC Mixed 43.8
130% 45.5 GB/s
SC Read 15.5
SC Write 19.1
SC Mixed 23.1
55% 19.2 GB/s
Latency 72.4
55% 72.4 ns
8 of 8 slots used
64GB DIMM clocked @ 2133 MHz
115% Outstanding
MC Read 49.9
MC Write 44.1
MC Mixed 42.6
130% 45.5 GB/s
SC Read 15
SC Write 18.5
SC Mixed 21.8
53% 18.4 GB/s
Latency 74.4
54% 74.4 ns
8 of 8 slots used
64GB DIMM clocked @ 2133 MHz
111% Outstanding
MC Read 46.7
MC Write 43
MC Mixed 41.5
125% 43.7 GB/s
SC Read 14.6
SC Write 17.9
SC Mixed 21.2
51% 17.9 GB/s
Latency 74.1
54% 74.1 ns
8 of 8 slots used
64GB DIMM clocked @ 2133 MHz
109% Outstanding
MC Read 46.1
MC Write 43
MC Mixed 40.3
123% 43.1 GB/s
SC Read 14.5
SC Write 17.5
SC Mixed 20.8
50% 17.6 GB/s
Latency 77.7
52% 77.7 ns
8 of 8 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
103% Outstanding
MC Read 34
MC Write 54.7
MC Mixed 35.2
118% 41.3 GB/s
SC Read 7.8
SC Write 22.8
SC Mixed 10.4
39% 13.7 GB/s
Latency 88.7
45% 88.7 ns
8 of 8 slots used
64GB DIMM clocked @ 2200 MHz
102% Outstanding
MC Read 44.1
MC Write 35.2
MC Mixed 42.5
116% 40.6 GB/s
SC Read 12.8
SC Write 15
SC Mixed 18.8
44% 15.5 GB/s
Latency 84.7
47% 84.7 ns
163 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 66,987,391 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 8x8GB Builds (Compare 2,055 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 102%
UFO
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 91%
Nuclear submarine

Motherboard: Asus RAMPAGE V EXTREME - $122

CPU
Core i7-5930KIntel  $70Bench 80%, 34,039 samples558x
Core i7-5820KIntel  $130Bench 77%, 101,694 samples526x
Core i7-5960XIntel  $285Bench 80%, 15,468 samples470x
GPU
GTX 1080-TiNvidia  $499Bench 124%, 840,268 samples216x
GTX 1080Nvidia  $400Bench 102%, 1,082,454 samples199x
GTX 980Nvidia  $500Bench 59%, 167,107 samples122x
SSD
850 Evo 500GBSamsung  $109Bench 112%, 695,664 samples79x
950 NVMe PCIe M.2 512GBSamsung  $625Bench 223%, 54,978 samples61x
970 Evo Plus NVMe PCIe M.2 1TBSamsung  $76Bench 310%, 455,997 samples60x
RAM
Dominator DDR4 2666 C15 8x8GBCorsairBench 124%, 163 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 59% - Above average Total price: $800

Popular Dominator DDR4 2666 C15 8x8GB compatible motherboards:

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Welcome to our 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 value for money upgrades.

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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
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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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