I have a E8400 wiht my GA-EP35-DS3L,
PSU is a OCZ modstream pro. 500 Watt ATX12V/2.2V
I wast hinking of buying a Asus 4870, 256 bit, GDDR5 1 GB card, (great deal on newegg)
but a Gigabyte tech said my mobo will not be able to take advantage of this Card due to chipset speed limitation. (or something, i am not very GPU literate)
i like to play at 1600 x 1200 ( right now its just 1280 x 1024, my 8600 GT is so damn slow)
The 4870 is PCIe 2.0, which is double the speed of PCIe 1.1. Now that may seem bad, and certainly would be something an employee of gig might point out given he wants to sell you a new MB.. but in reality no current cards max out the bus (an Asus MARS might.. and some next gen cards probably will).
A 4870 would work fine with that CPU and PSU. You might also consider a 4850 as they are great deals right now and good performers at 1600*1200. But the 4870's are also great deals atm.
Why did you say the resolution " I like to play at" ? What's the native resolution of your monitor ? That's what you should be playing at. Regardless, the 4870 with 1gig will be fine......... the faster the better. Don't waste money on a 512 card and your Gigabyte man is blowing smoke. 1.0 to 2.0 doesn't mean nothing..... not since it came out - to date.