Are Coffee Lake processors compatible with 3000 MHz RAM speeds?

[Dominik58057]

I'm new to PC building and I read somewhere that Coffee Lake processors are not compatible with RAM that has a speed of above 2666 MHz. Apparently Coffee Lake processors can't profit from RAM speeds of above 2666 MHz.

Is this really true or did I get false information?

[WereCat]

Only the "K" ones with a Z370 motherboard.

[Dominik58057]

1 minute ago, WereCat said:

Only the "K" ones with a Z370 motherboard.

Are you referring to the Kaby Lake processors?

[airdeano]

only z-series motherboards that support overclock as the default of CL is 2400.

[airdeano]

you can actually use 3000MHz RAM on non 'k' processors as the motherboard/chipset is the one relagates the speed used.

[Dominik58057]

7 minutes ago, airdeano said:

you can actually use 3000MHz RAM on non 'k' processors as the motherboard/chipset is the one relagates the speed used.

So, you're saying that as long as I have a k-series processor and a compatible motherboard (for RAM speeds of 3000 MHz e.g. the z-series), I can use RAM with speeds of 3000 MHz?

 

3 minutes ago, Dominik58057 said:

So, you're saying that as long as I have a k-series processor and a compatible motherboard (for RAM speeds of 3000 MHz e.g. the z-series), I can use RAM with speeds of 3000 MHz?

Plus: While we are talking about about k-series processors. What are other benefits of using a k-series processor?

[Jurrunio]

It's compatible. Without Z mobo, It's stuck at 2400 (for dual and quad cores) or 2666 (for hexa cores) at most. With Z mobo, the max is 4266 I believe? You can push higher if there's a clock gen chip on the board. But no matter the board, it will work. Just at a lower frequency

[airdeano]

as long as you have a z-series motherboard, you can use the 3000MHz to its full potential (assuming the RAM has pass the manufacturers QVL)

[Dominik58057]

Sorry, if I ask a dumb question, but I just want to make sure. So, you're saying that I can pair a non-k processor with a 3000 MHz RAM and use 3000 MHz as long as I have a Z-series motherboard?

[airdeano]

yes, exactly.

 

oh and welcome to the Linus Tech Tips forums!

[Dominik58057]

Just now, airdeano said:

yes, exactly.

 

on and welcome to the Linus Tech Tips forums!

Thank you, I believe that I will have a very good time here - the responds are just too fast

[airdeano]

but, what app do you use that requires just speedy RAM as in most appz you'd be overspending where you can concentrate more funds in 'lacking' areas.

[Dominik58057]

1 minute ago, airdeano said:

but, what app do you use that requires just speedy RAM as in most appz you'd be overspending where you can concentrate more funds in 'lacking' areas.

I would use this PC for gaming (PUBG mainly) and I thought that 3000 Mhz is the standard for gaming in 2018 or should I just go with 2666 MHz?

[airdeano]

2666 is fine, no real 'gains' on spending 'extra' on RAM speed, especially in the gaming aspects.

[Dominik58057]

1 minute ago, airdeano said:

2666 is fine, no real 'gains' on spending 'extra' on RAM speed, especially in the gaming aspects.

Oh ok, thanks 

[airdeano]

ryzen seems to benefit more in RAM speed above 2933 due to its infinity fabric and communication between the core modules.

the sweet rigs seems to be i5-8600, 2666 RAM and 1070/1070ti for resolution play 1440/1080 144Hz.

easiest to find out is to sub a thread here: https://linustechtips.com/main/forum/18-new-builds-and-planning/

what budget and with games to be played, monitor resolution and what peripherals needed/used.

[Dominik58057]

1 minute ago, airdeano said:

ryzen seems to benefit more in RAM speed above 2933 due to its infinity fabric and communication between the core modules.

the sweet rigs seems to be i5-8600, 2666 RAM and 1070/1070ti for resolution play 1440/1080 144Hz.

easiest to find out is to sub a thread here: https://linustechtips.com/main/forum/18-new-builds-and-planning/

what budget and with games to be played, monitor resolution and what peripherals needed/used.

I'll take a look and yeah, I'm looking for a build that manages 144 fps