cpu and motherboard frequency

[sample text]

what will happen if I have motherboard which supports 3000+Mhz RAM,but my processor supports 2666 and I want to put 3000MHz RAM anyways?check that link:

https://ark.intel.com/products/126684/Intel-Core-i7-8700K-Processor-12M-Cache-up-to-4_70-GHz

the CPU supports 2666MHz,but the motherboard supports 3000MHz(just an example motherboard).which one is more important?to use max 2666mhz ram cuz of the processor,or max 3000 cuz of the motherboard?

[Oshino Shinobu]

The speeds supported by the CPU are just ones that are supported by default. Anything over that is considered an overclock. 

 

Both matter, but most of the time the board will support beyond what the CPU does at default, so the board is the important part for maximum speed, though it's worth noting that as going over the CPU's maximum default speed is considered overclocking, there's no guarantee that it will actually run at those speeds, even if the RAM and motherboard are capable of it, you could get unlucky with a CPU that doesn't like it. In that case, you can just step down to 2666MHz

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6 minutes ago, Oshino Shinobu said:

The speeds supported by the CPU are just ones that are supported by default. Anything over that is considered an overclock. 

 

Both matter, but most of the time the board will support beyond what the CPU does at default, so the board is the important part for maximum speed, though it's worth noting that as going over the CPU's maximum default speed is considered overclocking, there's no guarantee that it will actually run at those speeds, even if the RAM and motherboard are capable of it, you could get unlucky with a CPU that doesn't like it. In that case, you can just step down to 2666MHz

yes, it makes sense.there are even 4000Mhz RAMs and there is no processor which can support it.even intel i9-7980XE  supports max 2666MHz,but some ppl still use 3000 or 4000MHz RAMs.it was a bit dumb question,but thanks for the reply