I am building a new gaming/production computer this year and I have found some components that I want to add to the system. This is the list of components so far:
- CPU: Intel Core i7 6700K
- GPU: Asus GeForce GTX 1080 Strix Gaming OC
- Case: NZXT H440W NE (Sort)
- Motherboard: Asus Z170-DeluxeCorsair
- PSU: HX1000i 1000W
However regarding the RAM I was unsure as to which one I should pick. The spec sheet for the i7 6700K says that the CPU supports RAM of up to 2133MHz. However the motherboard (being compatible with the 6700K) supports RAM up to 3466MHz.
So which limit should I respect here? The limit of the motherboard or the limit of the CPU?
I have heard from "untrustworthy" sources that it is the motherboard that decides which RAM speed I can use, but how does this work practically? I guess there must be a reason why Intel has listed 2133MHz as the upper limit of supported RAM speed, right?