Please answer

If by P35 you mean the Chipset, then it will work.

GDDR3 is a type of memory used on graphics cards, DDR3 is a new type of memory being used in desktops - DDR3 and DDR2 are not compatible, and atm DDR3 is so rediculously expensive DDR2 is a much better option.

i always thought that GDDR is "Graphics DDR"

thanks alot, just because, there was a 7600 gt i was looking at today and it said on the box, memory type : ddr3 and i was like what the heck ?, im geting a p35c, should be good. What does that mean ddr3 7600 gt graphics card.

It means it uses GDDR3 memory on the card...?

^Isn't it fun answering questions like that...Yeah, alot of modern cards use GDDR3 memory, its faster then GDDR2, but the memory chips are ON the GPU, so it has no affect with whats on your motherboard as lon as you have the PCI-E slot (Which P35 boards have)
~Bryan~