Tracking the top memory modules...
Price and performance details for the Kingston KHX2666C15D4/4G 4GB can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily.
Description: PC4-21300, 1.2V, CAS Supported: 9 11 12 13 14 15 16 17 18
Other names: Kingston KHX2666C15D4/4G
Memory First Benchmarked: 2020-03-06
Last Price Change: NA
| Database Operations | 3,930 KOps/Sec |
|---|---|
| Memory Read Cached | 28,317 MBytes/Sec |
| Memory Read Uncached | 17,238 MBytes/Sec |
| Memory Write | 11,236 MBytes/Sec |
| Latency | 42 ns (lower is better) |
| Memory Threaded | 37,859 MBytes/Sec |
| Memory Model | Average | |
|---|---|---|
| Corsair CMK16GX4M2B3200C16 8GB | 41 ns | |
| Team Group Inc. TEAMGROUP-UD4-3200 8GB | 42 ns | |
| Corsair CMK32GX4M2E3200C16 16GB | 45 ns | |
| Corsair CMW16GX4M2C3200C16 8GB | 40 ns | |
| G Skill Intl F4-3200C16-8GVKB 8GB | 41 ns | |
| G Skill Intl F4-3200C16-16GVK 16GB | 41 ns | |
| Kingston KF3200C16D4/8GX 8GB | 43 ns | |
| Corsair CMK16GX4M2B3000C15 8GB | 40 ns | |
| Kingston KF3200C16D4/16GX 16GB | 43 ns | |
| Kingston KHX2666C15D4/4G 4GB | 42 ns | |
| PassMark Software © 2008-2025 |
| Memory Model | Average | |
|---|---|---|
| Corsair CMK16GX4M2B3200C16 8GB | 18.6 GB/s | |
| Team Group Inc. TEAMGROUP-UD4-3200 8GB | 19.8 GB/s | |
| Corsair CMK32GX4M2E3200C16 16GB | 20.0 GB/s | |
| Corsair CMW16GX4M2C3200C16 8GB | 19.0 GB/s | |
| G Skill Intl F4-3200C16-8GVKB 8GB | 18.9 GB/s | |
| G Skill Intl F4-3200C16-16GVK 16GB | 19.5 GB/s | |
| Kingston KF3200C16D4/8GX 8GB | 20.8 GB/s | |
| Corsair CMK16GX4M2B3000C15 8GB | 17.7 GB/s | |
| Kingston KF3200C16D4/16GX 16GB | 21.4 GB/s | |
| Kingston KHX2666C15D4/4G 4GB | 17.2 GB/s | |
| PassMark Software © 2008-2025 |
| Memory Model | Average | |
|---|---|---|
| Corsair CMK16GX4M2B3200C16 8GB | 12.6 GB/s | |
| Team Group Inc. TEAMGROUP-UD4-3200 8GB | 13.3 GB/s | |
| Corsair CMK32GX4M2E3200C16 16GB | 13.5 GB/s | |
| Corsair CMW16GX4M2C3200C16 8GB | 13.0 GB/s | |
| G Skill Intl F4-3200C16-8GVKB 8GB | 12.5 GB/s | |
| G Skill Intl F4-3200C16-16GVK 16GB | 13.9 GB/s | |
| Kingston KF3200C16D4/8GX 8GB | 13.6 GB/s | |
| Corsair CMK16GX4M2B3000C15 8GB | 11.9 GB/s | |
| Kingston KF3200C16D4/16GX 16GB | 14.6 GB/s | |
| Kingston KHX2666C15D4/4G 4GB | 11.2 GB/s | |
| PassMark Software © 2008-2025 |
| Memory Model | Average | |
|---|---|---|
| Corsair CMK16GX4M2B3200C16 8GB | 37.4 GB/s | |
| Team Group Inc. TEAMGROUP-UD4-3200 8GB | 39.8 GB/s | |
| Corsair CMK32GX4M2E3200C16 16GB | 37.6 GB/s | |
| Corsair CMW16GX4M2C3200C16 8GB | 37.7 GB/s | |
| G Skill Intl F4-3200C16-8GVKB 8GB | 37.8 GB/s | |
| G Skill Intl F4-3200C16-16GVK 16GB | 38.5 GB/s | |
| Kingston KF3200C16D4/8GX 8GB | 40.2 GB/s | |
| Corsair CMK16GX4M2B3000C15 8GB | 34.9 GB/s | |
| Kingston KF3200C16D4/16GX 16GB | 40.5 GB/s | |
| Kingston KHX2666C15D4/4G 4GB | 37.9 GB/s | |
| PassMark Software © 2008-2025 |
 |
 |
 |
| Baseline | Benchmark Results | |
|---|---|---|
| BL2486199 - Mar 16 2025 |
52 ns - Latency 16.1 GB/s - Read Uncached 8.2 GB/s - Write 38.0 GB/s - Threaded | |
| BL2477192 - Mar 13 2025 |
60 ns - Latency 15.2 GB/s - Read Uncached 8.7 GB/s - Write 38.1 GB/s - Threaded | |
| BL2465224 - Mar 07 2025 |
40 ns - Latency 16.2 GB/s - Read Uncached 12.9 GB/s - Write 28.2 GB/s - Threaded | |
| BL2460909 - Mar 06 2025 |
38 ns - Latency 14.3 GB/s - Read Uncached 10.0 GB/s - Write 48.0 GB/s - Threaded | |
| BL2454319 - Mar 03 2025 |
30 ns - Latency 18.3 GB/s - Read Uncached 14.9 GB/s - Write 34.3 GB/s - Threaded | |
| PassMark Software © 2008-2025 |
DDR5 Search 
Common
Memory brands