Return to Level1Techs.com

RAM speeds supporter by CPU


#1

Hi. So uh… I went through the specifications of my CPU, which is i5 8600. It says “Memory types: DDR4-2666”. Does it mean it’s the absolute highest clock speed I can go with?

I have 3000MHz sticks since they were sold for the same price as 2400 ones and I don’t know if I should try pushing them past the 2666MHz now.


#2

That’s what JEDEC has validated the integrated memory controller on those Intel CPUs.
But you can use faster memory if you’re on a board that supports memory overclocking. The XMP profiles are a combination of settings the RAM manufacturer has tested that SHOULD work. Or, at least, the memory chips are capable of those speeds and access rate.

Point is: everything past the JEDEC standard is considered overclock so it’s not guaranteed to work. But it has become reliable on the Intel platform so if you buy a higher speed kit that’s supported by your motherboard it will probably work without any problem.
Going for even faster RAM speeds makes the compatibility less and less probable.


#3

It works perfectly fine actually in my case. Thanks!


#4

You’re welcome!