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Corsair

CMW16GX4M2A2666C16 2x8GB

▲ 502 ▼

Release date ≈ Q2 2018.

Average Bench: 76% (64th of 113)

Based on 17,245 user benchmarks.  Model: Corsair CMW16GX4M2A2666C16 2x8GB
Poor: 59%Average: 76% Great: 93%

Popular builds with this RAM

Good average bench

The Corsair CMW16GX4M2A2666C16 2x8GB averaged 24.0% 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 27.3GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair CMW16GX4M2A2666C16 2x8GB is 33.9%. This is a relatively narrow range which indicates that the Corsair CMW16GX4M2A2666C16 2x8GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Physical RAM Latency 78.8ns
Avg. 1 Core Read Bench 18.2GB/s
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Average Bench

(Based on 17,245 samples)
Rank 6476%
Min Avg Max
23.6 MC Read 29.9 36.9
17.7 MC Write 27.3 35.6
18.7 MC Mixed 24.1 31.3
77.4% 27.1 GB/s
Min Avg Max
12.5 SC Read 18.2 24.8
15.5 SC Write 26.7 36.9
15.2 SC Mixed 23.4 30
65.1% 22.8 GB/s
Min Avg Max
57.7 Latency 78.8 107
50.8% 78.8 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 @ 2666 MHz
87.1% Excellent
MC Read 33.9
MC Write 35
MC Mixed 24.1
89% 31 GB/s
SC Read 18.3
SC Write 34.5
SC Mixed 26.1
75% 26.3 GB/s
Latency 63.7
63% 63.7 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
86.4% Excellent
MC Read 33
MC Write 34.8
MC Mixed 25.1
88% 31 GB/s
SC Read 19.5
SC Write 30.9
SC Mixed 24
71% 24.8 GB/s
Latency 62.6
64% 62.6 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
83.5% Excellent
MC Read 32.2
MC Write 32.8
MC Mixed 23.1
84% 29.4 GB/s
SC Read 18
SC Write 33.8
SC Mixed 27
75% 26.3 GB/s
Latency 62.8
64% 62.8 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
80.5% Excellent
MC Read 32
MC Write 30.3
MC Mixed 22.8
81% 28.4 GB/s
SC Read 16.7
SC Write 31.7
SC Mixed 25.1
70% 24.5 GB/s
Latency 60.8
66% 60.8 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
79.9% Very good
MC Read 31.1
MC Write 29.3
MC Mixed 24.6
81% 28.3 GB/s
SC Read 17.6
SC Write 27.8
SC Mixed 24.8
67% 23.4 GB/s
Latency 61
66% 61 ns
2 of 2 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
73.1% Very good
MC Read 28.1
MC Write 27.8
MC Mixed 21.4
74% 25.8 GB/s
SC Read 17.3
SC Write 27.7
SC Mixed 22.1
64% 22.4 GB/s
Latency 68.8
58% 68.8 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
69.2% Good
MC Read 26.9
MC Write 25.5
MC Mixed 20.4
69% 24.3 GB/s
SC Read 16.8
SC Write 25.9
SC Mixed 21.1
61% 21.3 GB/s
Latency 68.1
59% 68.1 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
42.5% Average
MC Read 17.1
MC Write 14.7
MC Mixed 14.6
44% 15.5 GB/s
SC Read 7.2
SC Write 11
SC Mixed 7.9
25% 8.7 GB/s
Latency 85.9
47% 85.9 ns
17,245 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 39,971,774 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 74,012 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 101%
UFO
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 96%
Nuclear submarine

Motherboard: Asus ROG STRIX B450-F GAMING - $135

CPU
Ryzen 5 3600AMD  $200Bench 85%, 740,179 samples18,172x
Ryzen 7 2700XAMD  $276Bench 82%, 457,388 samples11,510x
Ryzen 7 3700XAMD  $330Bench 87%, 469,549 samples9,691x
GPU
RTX 2070S (Super)Nvidia  $510Bench 119%, 422,698 samples6,043x
RX 5700-XTAMD  $400Bench 107%, 316,936 samples5,646x
RTX 2060Nvidia  $338Bench 88%, 370,664 samples5,286x
SSD
860 Evo 500GBSamsung  $60Bench 106%, 530,736 samples3,440x
970 Evo Plus NVMe PCIe M.2 500GBSamsung  $80Bench 285%, 273,120 samples2,661x
970 Evo NVMe PCIe M.2 500GBSamsung  $70Bench 270%, 313,996 samples2,467x
RAM
CMW16GX4M2A2666C16 2x8GBCorsairBench 76%, 17,245 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $905

Popular CMW16GX4M2A2666C16 2x8GB compatible motherboards:

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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
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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 i5-10600K $224Nvidia RTX 3060-Ti $400Crucial MX500 250GB $49
Intel Core i5-10400F $148Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i7-10700K $320Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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