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Corsair

CMR16GX4M2A2666C16 4x8GB

▲ 500 ▼

Release date ≈ Q2 2017.

Average Bench: 82% (50th of 115)

Based on 731 user benchmarks.  Model: Corsair CMR16GX4M2A2666C16 4x8GB
Poor: 66%Average: 82% Great: 97%

Popular builds with this RAM

Very good average bench

The Corsair CMR16GX4M2A2666C16 4x8GB averaged just 18.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair CMR16GX4M2A2666C16 4x8GB near the top of the comparison list.

Strengths

Avg. 16 Core Read Bench 30.8GB/s
Avg. 16 Core Write Bench 30.5GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair CMR16GX4M2A2666C16 4x8GB is 31.3%. This is a relatively narrow range which indicates that the Corsair CMR16GX4M2A2666C16 4x8GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Physical RAM Latency 76.7ns
Avg. 1 Core Read Bench 19.1GB/s
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Average Bench

(Based on 731 samples)
Rank 5082%
Min Avg Max
23.2 MC Read 30.8 38.8
18.4 MC Write 30.5 48.3
20.8 MC Mixed 26.9 34.7
84% 29.4 GB/s
Min Avg Max
11.7 SC Read 19.1 25.4
17 SC Write 29.7 38.9
14.5 SC Mixed 24.7 32.3
70% 24.5 GB/s
Min Avg Max
59.4 Latency 76.7 103
52.2% 76.7 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2666 MHz
87.9% Excellent
MC Read 31.6
MC Write 32.6
MC Mixed 30.2
90% 31.5 GB/s
SC Read 21.6
SC Write 35.7
SC Mixed 28.3
82% 28.5 GB/s
Latency 87.6
46% 87.6 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2666 MHz
85.8% Excellent
MC Read 31.5
MC Write 33.2
MC Mixed 26.1
86% 30.3 GB/s
SC Read 18.1
SC Write 36.1
SC Mixed 25.8
76% 26.7 GB/s
Latency 61.3
65% 61.3 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2667 MHz
82.1% Excellent
MC Read 30.9
MC Write 32.7
MC Mixed 24.6
84% 29.4 GB/s
SC Read 16.2
SC Write 32
SC Mixed 24.6
69% 24.3 GB/s
Latency 69.1
58% 69.1 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2133 MHz
74.1% Very good
MC Read 26.6
MC Write 28.8
MC Mixed 23.2
75% 26.2 GB/s
SC Read 17.5
SC Write 29.4
SC Mixed 22.1
66% 23 GB/s
Latency 73.1
55% 73.1 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2197 MHz
72.5% Very good
MC Read 27.5
MC Write 25.2
MC Mixed 25.1
74% 25.9 GB/s
SC Read 19.1
SC Write 28
SC Mixed 22.5
66% 23.2 GB/s
Latency 99.2
40% 99.2 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2133 MHz
71.7% Very good
MC Read 25.7
MC Write 27.9
MC Mixed 22
72% 25.2 GB/s
SC Read 17
SC Write 29.6
SC Mixed 22.4
66% 23 GB/s
Latency 75.9
53% 75.9 ns
731 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 61,255,500 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 CMR16GX4M2A2666C16 4x8GB Builds (Compare 5,747 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 111%
UFO
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 102%
UFO

Motherboard: Asus ROG STRIX Z370-F GAMING - $200

CPU
Core i7-8700KIntel  $217Bench 88%, 746,287 samples3,680x
Core i5-8600KIntel  $235Bench 91%, 264,837 samples803x
Core i7-8700Intel  $330Bench 87%, 349,567 samples363x
GPU
GTX 1080-TiNvidia  $325Bench 124%, 840,268 samples1,081x
GTX 1080Nvidia  $400Bench 102%, 1,082,454 samples645x
GTX 1070Nvidia  $200Bench 80%, 1,459,281 samples314x
SSD
970 Evo NVMe PCIe M.2 500GBSamsung  $50Bench 273%, 381,216 samples283x
960 Evo NVMe PCIe M.2 500GBSamsung  $50Bench 213%, 165,668 samples225x
970 Evo Plus NVMe PCIe M.2 1TBSamsung  $60Bench 310%, 455,997 samples217x
RAM
CMR16GX4M2A2666C16 4x8GBCorsairBench 82%, 731 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 93% - Outstanding Total price: $792

Popular CMR16GX4M2A2666C16 4x8GB compatible motherboards:

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  • - CPU tests include: integer, floating and string.
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  • - Drive tests include: read, write, sustained write and mixed IO.
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  • - Reports are generated and presented on userbenchmark.com.
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Memory Kit Rankings (Price vs Performance) June 2023 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

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vs HyperX Fury DDR4 2133 C14 2x8GB
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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 $300Nvidia RTX 3060 $280Crucial MX500 250GB $25
Intel Core i5-12600K $224Nvidia RTX 3060-Ti $300Samsung 850 Evo 120GB $86
Intel Core i5-12400F $150Nvidia RTX 4070-Ti $780Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $67G.SKILL Trident Z DDR4 3200 C14 4x16GB $381SanDisk Ultra Fit 32GB $16
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