Quote:
Originally Posted by skid
Don't think so. I think the bottleneck lies in the 256 bit memory interface of the 9800 series. The 8800GTX and Ultra have a 384 bit memory interface. The 9 series cards are simply not transferring data quick enough from system memory to video card memory.
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The memory interface on the Video card has little to do with the data transfers from system memory. That's a function of the system memory and the PCIe/PCi busses. Graphics memory deal with the transfer of data between the GPU and itself. Besides, system memory is so much slower than video memory, it'd be the system memory slowing down that type of direct transfer.
The G9x cards are a bit memory bandwidth limited, but they do use the bandwidth they have more efficiently than their G8x counterparts. But because they have less memory, they are more likely to run out of framebuffer space before their G8x counterparts(then they'd have to transfer data to system RAM which slows the rendering process down to a crawl).
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