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Corsair

CMW16GX4M2A2666C16 2x8GB

▲ 500 ▼

Release date ≈ Q2 2018.

VS

Average Bench: 76.1% (63rd of 108)

Based on 5,774 user benchmarks.  Model: Corsair CMW16GX4M2A2666C16 2x8GB
Poor: 52%Average: 76.1% Great: 94%

Popular builds with this RAM

Good average bench

The Corsair CMW16GX4M2A2666C16 2x8GB averaged 23.9% 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 29.8GB/s
Avg. 16 Core Write Bench 27.7GB/s

Average consistency

The range of scores (95th - 5th percentile) for the Corsair CMW16GX4M2A2666C16 2x8GB is 41.5%. 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 71.6ns
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Average Bench

(Based on 5,774 samples)
Rank 6376.1%
Min Avg Max
19.7 MC Read 29.8 37.6
17.9 MC Write 27.7 35
16 MC Mixed 23.5 31.3
77.2% 27 GB/s
Min Avg Max
13.6 SC Read 18.3 23.6
17.1 SC Write 26.8 35.2
16 SC Mixed 23.2 27.9
65.1% 22.8 GB/s
Min Avg Max
56 Latency 71.6 99.2
55.9% 71.6 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 2666 MHz clocked @ 1333 MHz
94.2% Outstanding
MC Read 36.9
MC Write 34.8
MC Mixed 31
98% 34.2 GB/s
SC Read 23.1
SC Write 34.3
SC Mixed 26.3
80% 27.9 GB/s
Latency 79.5
50% 79.5 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
89.1% Excellent
MC Read 35.1
MC Write 34.6
MC Mixed 24.9
90% 31.5 GB/s
SC Read 20.4
SC Write 33.7
SC Mixed 26.5
77% 26.9 GB/s
Latency 56.7
70% 56.7 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
87.2% Excellent
MC Read 34.6
MC Write 33.5
MC Mixed 25
89% 31 GB/s
SC Read 18.8
SC Write 30.7
SC Mixed 26.9
73% 25.5 GB/s
Latency 58.2
69% 58.2 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
81.9% Excellent
MC Read 32.6
MC Write 30.6
MC Mixed 22.8
82% 28.7 GB/s
SC Read 19.1
SC Write 31.9
SC Mixed 25.9
73% 25.6 GB/s
Latency 58.7
68% 58.7 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
80.4% Excellent
MC Read 30.5
MC Write 29.7
MC Mixed 26.6
83% 28.9 GB/s
SC Read 21.4
SC Write 28.3
SC Mixed 23.8
70% 24.5 GB/s
Latency 83.7
48% 83.7 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
73.5% Very good
MC Read 28.1
MC Write 27.5
MC Mixed 21.1
73% 25.6 GB/s
SC Read 17.8
SC Write 28.4
SC Mixed 22.7
66% 23 GB/s
Latency 60.7
66% 60.7 ns
2 of 4 slots used
16GB DIMM DDR4 2133 MHz clocked @ 1067 MHz
38.2% Below average
MC Read 14
MC Write 11.4
MC Mixed 12.3
36% 12.6 GB/s
SC Read 14.2
SC Write 13.3
SC Mixed 13.4
39% 13.6 GB/s
Latency 89.7
45% 89.7 ns
5,774 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,563,985 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 21,491 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 55%
Yacht
Desktop
Desktop 73%
Battleship
Workstation
Workstation 60%
Destroyer

Motherboard: Asus ROG STRIX B450-F GAMING - $120

CPU
Ryzen 5 2600AMD  $129Bench 75%, 202,837 samples6,365x
Ryzen 7 2700XAMD  $220Bench 82%, 165,244 samples4,885x
Ryzen 5 2600XAMD  $149Bench 78%, 108,859 samples4,585x
GPU
RX 580AMD  $177Bench 55%, 250,836 samples2,273x
GTX 1060-6GBNvidia  $250Bench 56%, 646,599 samples1,952x
GTX 1070Nvidia  $405Bench 79%, 656,806 samples1,887x
SSD
860 Evo 500GBSamsung  $75Bench 106%, 171,396 samples1,584x
970 Evo NVMe PCIe M.2 500GBSamsung  $90Bench 271%, 117,148 samples936x
970 Evo NVMe PCIe M.2 250GBSamsung  $90Bench 231%, 79,121 samples892x
RAM
CMW16GX4M2A2666C16 2x8GBCorsairBench 76%, 5,774 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $501

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.

 Comments

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Age: 15 months

Speed Comparisons

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

108 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 i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $80
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $278Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060 $330Samsung 850 Pro 256GB $219
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $34G.SKILL Trident Z DDR4 3200 C14 4x16GB $618SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk Extreme 16GB $24
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