Kingston KF2666C16D4/16GX 16GB

Price and performance details for the Kingston KF2666C16D4/16GX 16GB 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.

Kingston KF2666C16D4/16GX 16GB

Description: PC4-21300, 1.2V, CAS Supported: 9 11 12 13 14 15 16 17 18

Other names: Kingston KF2666C16D4/16GX

Memory First Benchmarked: 2021-12-30

Last Price Change: NA

Average Mark

3275
Samples: 132

Memory Test Suite Average Results for Kingston KF2666C16D4/16GX 16GB

Database Operations	5,503 KOps/Sec
Memory Read Cached	32,161 MBytes/Sec
Memory Read Uncached	18,009 MBytes/Sec
Memory Write	13,136 MBytes/Sec
Latency	37 ns (lower is better)
Memory Threaded	34,386 MBytes/Sec

From submitted results to PerformanceTest V10 as of 19th of July 2026.

Latency
As of 19th of July 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
Kingston KF2666C16D4/16GX 16GB		37 ns
PassMark Software © 2008-2026

Read Uncached Transfer Speed
As of 19th of July 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
Kingston KF2666C16D4/16GX 16GB		18.0 GB/s
PassMark Software © 2008-2026

Write Transfer Speed
As of 19th of July 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
Kingston KF2666C16D4/16GX 16GB		13.1 GB/s
PassMark Software © 2008-2026

Threaded Memory
As of 19th of July 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		40.2 GB/s
G Skill Intl F4-3200C16-16GVK 16GB		38.5 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
Kingston KF2666C16D4/16GX 16GB		34.4 GB/s
PassMark Software © 2008-2026

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Last 5 Baselines for Kingston KF2666C16D4/16GX 16GB
Most recent listed first
Baseline	Benchmark Results
BL3549348 - Jun 26 2026		43 ns - Latency 18.9 GB/s - Read Uncached 13.0 GB/s - Write 36.5 GB/s - Threaded
BL3549307 - Jun 26 2026		43 ns - Latency 19.1 GB/s - Read Uncached 13.3 GB/s - Write 36.4 GB/s - Threaded
BL3540426 - Jun 22 2026		40 ns - Latency 21.2 GB/s - Read Uncached 14.0 GB/s - Write 38.2 GB/s - Threaded
BL3536065 - Jun 19 2026		40 ns - Latency 21.3 GB/s - Read Uncached 13.9 GB/s - Write 38.1 GB/s - Threaded
BL3512972 - Jun 08 2026		30 ns - Latency 13.9 GB/s - Read Uncached 7.1 GB/s - Write 17.7 GB/s - Threaded
PassMark Software © 2008-2026

RAM Benchmarks

Memory Benchmarks

Kingston KF2666C16D4/16GX 16GB

Memory Test Suite Average Results for Kingston KF2666C16D4/16GX 16GB