Kingston KHX2666C15S4/8G 8GB

Price and performance details for the Kingston KHX2666C15S4/8G 8GB 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 KHX2666C15S4/8G 8GB

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

Other names: Kingston KHX2666C15S4/8G

Memory First Benchmarked: 2020-03-09

Last Price Change: NA

Average Mark

2819
Samples: 306

Memory Test Suite Average Results for Kingston KHX2666C15S4/8G 8GB

Database Operations	3,848 KOps/Sec
Memory Read Cached	27,301 MBytes/Sec
Memory Read Uncached	16,063 MBytes/Sec
Memory Write	11,939 MBytes/Sec
Latency	41 ns (lower is better)
Memory Threaded	33,244 MBytes/Sec

From submitted results to PerformanceTest V10 as of 22nd of July 2026.

Latency
As of 22nd 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 KHX2666C15S4/8G 8GB		41 ns
PassMark Software © 2008-2026

Read Uncached Transfer Speed
As of 22nd 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 KHX2666C15S4/8G 8GB		16.1 GB/s
PassMark Software © 2008-2026

Write Transfer Speed
As of 22nd 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 KHX2666C15S4/8G 8GB		11.9 GB/s
PassMark Software © 2008-2026

Threaded Memory
As of 22nd 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 KHX2666C15S4/8G 8GB		33.2 GB/s
PassMark Software © 2008-2026

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Last 5 Baselines for Kingston KHX2666C15S4/8G 8GB
Most recent listed first
Baseline	Benchmark Results
BL3596434 - Jul 20 2026		46 ns - Latency 13.9 GB/s - Read Uncached 7.1 GB/s - Write 17.1 GB/s - Threaded
BL3590649 - Jul 17 2026		36 ns - Latency 13.6 GB/s - Read Uncached 7.2 GB/s - Write 18.1 GB/s - Threaded
BL3590136 - Jul 16 2026		28 ns - Latency 16.7 GB/s - Read Uncached 12.6 GB/s - Write 34.1 GB/s - Threaded
BL3583965 - Jul 14 2026		44 ns - Latency 9.6 GB/s - Read Uncached 8.9 GB/s - Write 20.2 GB/s - Threaded
BL3572730 - Jul 08 2026		33 ns - Latency 16.1 GB/s - Read Uncached 12.5 GB/s - Write 32.4 GB/s - Threaded
PassMark Software © 2008-2026

RAM Benchmarks

Memory Benchmarks

Kingston KHX2666C15S4/8G 8GB

Memory Test Suite Average Results for Kingston KHX2666C15S4/8G 8GB