- Jan 2, 2008
- 161
- 0
- 0
Hi
I like to buy the best of the best of the best when I buy a computer (within reason), which is why I want to shell out and buy a Asus 4870X2 for the Rampage Extreme II w/ the Core i7 920 I'm gonna get. I believe this motherboard features PCI Ex lane output for Crossfire of 16x/16x/8x. Which I would be fine with if I was buying just ordinary single GPU solutions. But seeing as there are two GPUs on each of these 4870X2's I buy, I am left wondering: does having one 4870X2 on a single slot reduce its output to each GPU to 8x?
The net effect of that scenario is of course me buying two 4870X2's only to find that I would've got the exact same output if I bought instead two single GPU 4870's. In terms of numbers I would be getting 8x/8x/8x/8x - but on two PCI Express slots. Its kinda like that for my current setup.
I only managed to get SLI last month on my 2 year old computer (DFI Skt 939 SLI-DR Expert w/ two BFG 7800GTXs) only to find that the board only supported an output of 8x/8x for both, net effect = same as having one card on a single x16 slot. I was really pi$$ed off with that. OK so it only cost me £40 (and far too much time to find a EXACT same card that is now way after-market and discontinued so that it would be compatible.. thanks eBay) but I don't want to go through that kind of pain again! So I'm doing my homework here.
What else really got my back up was when I bought Vista 64 the other day, only to find that it doesn't support my DX9 SLI cards! GRR!
OK so back to the question.
I want quad Crossfire with 16x to each GPU. Would I be able to get that with two 4870X2's in a Asus Rampage Extreme II, or is this not yet supported on any motherboard to date?
TIA.
I like to buy the best of the best of the best when I buy a computer (within reason), which is why I want to shell out and buy a Asus 4870X2 for the Rampage Extreme II w/ the Core i7 920 I'm gonna get. I believe this motherboard features PCI Ex lane output for Crossfire of 16x/16x/8x. Which I would be fine with if I was buying just ordinary single GPU solutions. But seeing as there are two GPUs on each of these 4870X2's I buy, I am left wondering: does having one 4870X2 on a single slot reduce its output to each GPU to 8x?
The net effect of that scenario is of course me buying two 4870X2's only to find that I would've got the exact same output if I bought instead two single GPU 4870's. In terms of numbers I would be getting 8x/8x/8x/8x - but on two PCI Express slots. Its kinda like that for my current setup.
I only managed to get SLI last month on my 2 year old computer (DFI Skt 939 SLI-DR Expert w/ two BFG 7800GTXs) only to find that the board only supported an output of 8x/8x for both, net effect = same as having one card on a single x16 slot. I was really pi$$ed off with that. OK so it only cost me £40 (and far too much time to find a EXACT same card that is now way after-market and discontinued so that it would be compatible.. thanks eBay) but I don't want to go through that kind of pain again! So I'm doing my homework here.
What else really got my back up was when I bought Vista 64 the other day, only to find that it doesn't support my DX9 SLI cards! GRR!
OK so back to the question.
I want quad Crossfire with 16x to each GPU. Would I be able to get that with two 4870X2's in a Asus Rampage Extreme II, or is this not yet supported on any motherboard to date?
TIA.