What does 16gb ram dual channel 665mhz 9-9-9-24 mean? - CPUs, Motherboards, and Memory - Linus Tech Tips
Why Task Manager shows 1333 Mhz and not 2666 Mhz despite adding 2*2GB 1333 Mhz (DDR3 KIT) and CPU-Z shows Dual Channel & DRAM Frequency at 665 Mhz? - Quora