Corsair CMK8GX4M2A2666C16 4GB

Price and performance details for the Corsair CMK8GX4M2A2666C16 4GB can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily.

The graphs shows the relative performance of the ram module compared up to 9 other common ram modules of same type. For DDR3 and DDR4, the values will be from systems using newer Intel CPUs where available.
If pricing history data is available for the ram module, a chart with be created charting price changes.
The last graph shows up to the last 5 baselines we have received for this particular ram module. Both Intel and AMD results are shown.

Corsair CMK8GX4M2A2666C16 4GB

Description: PC4-17000, 1.2V, CAS Supported: 9 10 11 12 13 14 15 16

Other names: Corsair CMK8GX4M2A2666C16

Memory First Benchmarked: 2020-03-14

Last Price Change: $69 USD (2021-11-06)

Average Mark

2514
Samples: 571

Memory Test Suite Average Results for Corsair CMK8GX4M2A2666C16 4GB

Database Operations	3,840 KOps/Sec
Memory Read Cached	29,239 MBytes/Sec
Memory Read Uncached	16,291 MBytes/Sec
Memory Write	10,584 MBytes/Sec
Latency	44 ns (lower is better)
Memory Threaded	32,159 MBytes/Sec

From submitted results to PerformanceTest V10 as of 10th of August 2026.

Latency
As of 10th of August 2026 - Lower numbers represent better performance
Memory Model	Average
Corsair CMK16GX4M2B3200C16 8GB		41 ns
Team Group Inc. TEAMGROUP-UD4-3200 8GB		44 ns
Corsair CMK32GX4M2E3200C16 16GB		45 ns
Kingston KF3200C16D4/8GX 8GB		44 ns
Kingston KF3200C16D4/16GX 16GB		44 ns
G Skill Intl F4-3200C16-16GVK 16GB		42 ns
G Skill Intl F4-3200C16-8GVKB 8GB		42 ns
Corsair CMW16GX4M2C3200C16 8GB		41 ns
Team Group Inc. TEAMGROUP-UD4-3600 8GB		44 ns
Corsair CMK8GX4M2A2666C16 4GB		44 ns
PassMark Software © 2008-2026

Read Uncached Transfer Speed
As of 10th of August 2026 - Higher results represent better performance
Memory Model	Average
Corsair CMK16GX4M2B3200C16 8GB		18.8 GB/s
Team Group Inc. TEAMGROUP-UD4-3200 8GB		20.0 GB/s
Corsair CMK32GX4M2E3200C16 16GB		20.2 GB/s
Kingston KF3200C16D4/8GX 8GB		20.8 GB/s
Kingston KF3200C16D4/16GX 16GB		21.4 GB/s
G Skill Intl F4-3200C16-16GVK 16GB		19.8 GB/s
G Skill Intl F4-3200C16-8GVKB 8GB		19.1 GB/s
Corsair CMW16GX4M2C3200C16 8GB		19.2 GB/s
Team Group Inc. TEAMGROUP-UD4-3600 8GB		21.8 GB/s
Corsair CMK8GX4M2A2666C16 4GB		16.3 GB/s
PassMark Software © 2008-2026

Write Transfer Speed
As of 10th of August 2026 - Higher results represent better performance
Memory Model	Average
Corsair CMK16GX4M2B3200C16 8GB		12.7 GB/s
Team Group Inc. TEAMGROUP-UD4-3200 8GB		13.4 GB/s
Corsair CMK32GX4M2E3200C16 16GB		13.6 GB/s
Kingston KF3200C16D4/8GX 8GB		13.6 GB/s
Kingston KF3200C16D4/16GX 16GB		14.5 GB/s
G Skill Intl F4-3200C16-16GVK 16GB		14.0 GB/s
G Skill Intl F4-3200C16-8GVKB 8GB		12.6 GB/s
Corsair CMW16GX4M2C3200C16 8GB		13.1 GB/s
Team Group Inc. TEAMGROUP-UD4-3600 8GB		14.8 GB/s
Corsair CMK8GX4M2A2666C16 4GB		10.6 GB/s
PassMark Software © 2008-2026

Threaded Memory
As of 10th of August 2026 - Higher results represent better performance
Memory Model	Average
Corsair CMK16GX4M2B3200C16 8GB		37.3 GB/s
Team Group Inc. TEAMGROUP-UD4-3200 8GB		39.5 GB/s
Corsair CMK32GX4M2E3200C16 16GB		37.6 GB/s
Kingston KF3200C16D4/8GX 8GB		39.9 GB/s
Kingston KF3200C16D4/16GX 16GB		40.1 GB/s
G Skill Intl F4-3200C16-16GVK 16GB		38.4 GB/s
G Skill Intl F4-3200C16-8GVKB 8GB		37.6 GB/s
Corsair CMW16GX4M2C3200C16 8GB		37.5 GB/s
Team Group Inc. TEAMGROUP-UD4-3600 8GB		43.8 GB/s
Corsair CMK8GX4M2A2666C16 4GB		32.2 GB/s
PassMark Software © 2008-2026

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Last 5 Baselines for Corsair CMK8GX4M2A2666C16 4GB
Most recent listed first
Baseline	Benchmark Results
BL3627102 - Aug 03 2026		56 ns - Latency 21.0 GB/s - Read Uncached 13.4 GB/s - Write 31.7 GB/s - Threaded
BL3600814 - Jul 22 2026		58 ns - Latency 20.5 GB/s - Read Uncached 12.7 GB/s - Write 37.4 GB/s - Threaded
BL3595462 - Jul 19 2026		32 ns - Latency 15.1 GB/s - Read Uncached 12.5 GB/s - Write 27.6 GB/s - Threaded
BL3595280 - Jul 19 2026		58 ns - Latency 15.4 GB/s - Read Uncached 7.9 GB/s - Write 28.9 GB/s - Threaded
BL3554622 - Jun 29 2026		60 ns - Latency 14.1 GB/s - Read Uncached 7.6 GB/s - Write 30.5 GB/s - Threaded
PassMark Software © 2008-2026

RAM Benchmarks

Memory Benchmarks

Corsair CMK8GX4M2A2666C16 4GB

Memory Test Suite Average Results for Corsair CMK8GX4M2A2666C16 4GB