Bus(es) from CPU to GPU [Resolved]

[NoteMe]

Do all communication from the CPU to the GPU go through the FSB or does it get sendt directly to the AGP bus?

[Ideas Man]

Check the Intel site for diagrams of how it works. Look for AGP specifically.

[Lightning]

Look here. But everything needs to go thru the FSB, which for most part is the memory and bus (PCI-bus) controller. The CPU does only communicate with the FSB, not much more

[siyan]

Depends on whether you mean Athlon 64/Opteron or not.

AFAIK, with P4s/Athlon XPs/etc. it goes like this:

CPU --[FSB]--> Northbridge --[AGP]--> Video card

But with A64/Opteron there is no FSB per se...just that funky HT link. Read up at anandtech if you want to know more.

[NoteMe]

Thanks for all information and links. It cleard up a lot. I just wanted to know if the FSP also was a bottle neck when you send information to a GPU.


Thanks