Soldato
Hi,
I've been reading a fair amount lately on these forums about CPUs bottlenecking GPUs. Specifically Dual Cores vs. Quad Cores.
This started me thinking, could my C2D E6850 @ Stock (3GHz) be bottlenecking my 250GTS SLI setup?
I've done some runs with the free version of 3DMark06.
With 1 1GB 250GTS card in I get about 12000 (roughly).
With 2 1GB 250GTS in SLI I get about 14000 (again, roughly).
Now I was under the impression that SLI scaled better than that!
My initial thought was that since I've got an old motherboard doing SLI means I have to run both lanes at 8x instead of 16x. Since the board is old it's PCI-e v1.0 (or whatever) so I thought it was a bandwidth issue.
Then I thought that it was because 3DMark06 only runs at 1280*1024 that it wasn't pushing the 2 cards enough to display a difference.
But now I'm wondering if it's my CPU not feeding the cards quick enough.
So could my E6850 be holding back my 250SLI or are 250GTS cards in SLI not that 'hungry'?
Thanks.
I've been reading a fair amount lately on these forums about CPUs bottlenecking GPUs. Specifically Dual Cores vs. Quad Cores.
This started me thinking, could my C2D E6850 @ Stock (3GHz) be bottlenecking my 250GTS SLI setup?
I've done some runs with the free version of 3DMark06.
With 1 1GB 250GTS card in I get about 12000 (roughly).
With 2 1GB 250GTS in SLI I get about 14000 (again, roughly).
Now I was under the impression that SLI scaled better than that!
My initial thought was that since I've got an old motherboard doing SLI means I have to run both lanes at 8x instead of 16x. Since the board is old it's PCI-e v1.0 (or whatever) so I thought it was a bandwidth issue.
Then I thought that it was because 3DMark06 only runs at 1280*1024 that it wasn't pushing the 2 cards enough to display a difference.
But now I'm wondering if it's my CPU not feeding the cards quick enough.
So could my E6850 be holding back my 250SLI or are 250GTS cards in SLI not that 'hungry'?
Thanks.