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Corsair

CMW16GX4M2A2666C16 2x8GB

▲ 501 ▼

Release date ≈ Q2 2018.

Average Bench: 76.2% (67th of 113)

Based on 14,533 user benchmarks.  Model: Corsair CMW16GX4M2A2666C16 2x8GB
Poor: 56%Average: 76.2% Great: 94%

Popular builds with this RAM

Good average bench

The Corsair CMW16GX4M2A2666C16 2x8GB averaged 23.8% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair CMW16GX4M2A2666C16 2x8GB near the top of the comparison list.

Strengths

Avg. 16 Core Read Bench 29.9GB/s
Avg. 16 Core Write Bench 27.5GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair CMW16GX4M2A2666C16 2x8GB is 38.6%. This is a relatively wide range which indicates that the Corsair CMW16GX4M2A2666C16 2x8GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 18.3GB/s
Avg. Physical RAM Latency 74.9ns
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Average Bench

(Based on 14,533 samples)
Rank 6776.2%
Min Avg Max
22.1 MC Read 29.9 37.4
17.8 MC Write 27.5 35.5
18.8 MC Mixed 24 31.3
77.5% 27.1 GB/s
Min Avg Max
12.8 SC Read 18.3 24.4
15.8 SC Write 26.8 36.3
15.4 SC Mixed 23.4 29.2
65.3% 22.8 GB/s
Min Avg Max
56.6 Latency 74.9 105
53.4% 74.9 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
88.4% Excellent
MC Read 34.5
MC Write 34.5
MC Mixed 25.4
90% 31.5 GB/s
SC Read 16.6
SC Write 33.9
SC Mixed 26.5
73% 25.7 GB/s
Latency 56.9
70% 56.9 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
83.4% Excellent
MC Read 33.1
MC Write 30.6
MC Mixed 23.1
83% 28.9 GB/s
SC Read 20.4
SC Write 33
SC Mixed 27.5
77% 27 GB/s
Latency 56.2
71% 56.2 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
80.7% Excellent
MC Read 32.9
MC Write 27.5
MC Mixed 27.9
84% 29.4 GB/s
SC Read 19.8
SC Write 25.9
SC Mixed 23.3
66% 23 GB/s
Latency 86.2
46% 86.2 ns
2 of 8 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
77.9% Very good
MC Read 30.3
MC Write 24.1
MC Mixed 29
80% 27.8 GB/s
SC Read 17.5
SC Write 29.4
SC Mixed 26.8
70% 24.6 GB/s
Latency 84.5
47% 84.5 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
72.7% Very good
MC Read 27.6
MC Write 28
MC Mixed 20.9
73% 25.5 GB/s
SC Read 16.3
SC Write 26.8
SC Mixed 22.5
62% 21.9 GB/s
Latency 61.9
65% 61.9 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
72.4% Very good
MC Read 29.1
MC Write 19.4
MC Mixed 28.7
74% 25.7 GB/s
SC Read 22.2
SC Write 19
SC Mixed 27.9
66% 23 GB/s
Latency 86.2
46% 86.2 ns
2 of 4 slots used
16GB DIMM DDR4 2400 MHz clocked @ 2133 MHz
67.7% Good
MC Read 25.6
MC Write 25.3
MC Mixed 21
68% 24 GB/s
SC Read 12.8
SC Write 24.9
SC Mixed 21.5
56% 19.7 GB/s
Latency 69.7
57% 69.7 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
54.8% Above average
MC Read 21.7
MC Write 19.3
MC Mixed 17.6
56% 19.5 GB/s
SC Read 12.7
SC Write 13.1
SC Mixed 16.6
40% 14.1 GB/s
Latency 73.2
55% 73.2 ns
14,533 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 32,846,598 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 CMW16GX4M2A2666C16 2x8GB Builds (Compare 43,197 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 95%
Nuclear submarine
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 90%
Aircraft carrier

Motherboard: Asus ROG STRIX B450-F GAMING - $130

CPU
Ryzen 5 3600AMD  $200Bench 84%, 451,203 samples10,817x
Ryzen 7 2700XAMD  $210Bench 82%, 353,840 samples6,930x
Ryzen 7 3700XAMD  $284Bench 87%, 303,907 samples5,423x
GPU
RTX 2070S (Super)Nvidia  $505Bench 111%, 271,506 samples4,007x
RX 5700-XTAMD  $399Bench 106%, 214,536 samples3,514x
RTX 2060Nvidia  $314Bench 85%, 241,842 samples3,102x
SSD
860 Evo 500GBSamsung  $75Bench 108%, 404,342 samples2,138x
970 Evo Plus NVMe PCIe M.2 500GBSamsung  $90Bench 289%, 171,723 samples1,559x
970 Evo NVMe PCIe M.2 500GBSamsung  $80Bench 274%, 224,470 samples1,396x
RAM
CMW16GX4M2A2666C16 2x8GBCorsairBench 76%, 14,533 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 60% - Good Total price: $910

Popular CMW16GX4M2A2666C16 2x8GB compatible motherboards:

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Memory Kit Rankings (Price vs Performance) September 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]

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

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.

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $290Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $42
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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