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What is QPI/VTT for AMD CPUs?

post #1 of 6
Thread Starter 
Ive heard Intel Cpus have QPI/VTT options when they want to overclock their CPUs! does anyone know what replaces QPI/VTT 's name in AMD CPU's?? what are they do in general?....is there anything similar to those when we talk about AMDs?
post #2 of 6
I think you are referring to a bios option either called "CPU VTT" or "QPI/DRAM" voltage, and now on socket 1155 it's even called "VCCIO". Anyway the equivalent voltage for you would be "CPU-NB" voltage. It will stabilize higher NB frequency (speed of processor's memory controller and L3 cache) as well as high frequency memory. On Intel it basically does the same thing, helps with high RAM speeds and high uncore frequency.
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post

I think you are referring to a bios option either called "CPU VTT" or "QPI/DRAM" voltage, and now on socket 1155 it's even called "VCCIO". Anyway the equivalent voltage for you would be "CPU-NB" voltage. It will stabilize higher NB frequency (speed of processor's memory controller and L3 cache) as well as high frequency memory. On Intel it basically does the same thing, helps with high RAM speeds and high uncore frequency.

that was my question thank you dopamin!.....
post #4 of 6
CPU NB is the closest equivalent on most AMD boards.
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by Blameless View Post

CPU NB is the closest equivalent on most AMD boards.

so is QPI same as VTT? or QPI is something different?
post #6 of 6
Intel's QPI bus uses the same voltage as VTT (termination voltage) which is also the same voltage as the entire uncore on first gen i7/5s, and in most BIOSes this is labled QPI/VTT.
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