Posted: Wed Sep 22, 2004 5:30 pm Post subject: PCI-Express
What are the benefits of PCI-Express x16?
There are lots of new technology coming out at the moment, and one of these is PCI-Express x16 - massive bandwidth and everyone happy that it is backwards compatible with old PCI cards.
There are 2 reasons why high-end cards aren't on PCI-Express at the moment, these being:
The benefits first, and why are there no GeForce 6800 Ultra's or X800 XT's in a PCI-Express format?
Bandwidth
PCI Express design provides more than double the bandwidth of AGP solutions. Full bandwidth is available in both upstream and downstream directions simultaneously, whereas AGP is only capable of unidirectional bandwidth.
Power Management
The serial bus with the reduced pin structure of the ATI native PCI Express architecture reduces the number of signals required, supporting lower power consumption and PCI Express's low-power idle states.
Notebook users will find this feature of particular importance.
Company experience second, large companies know that only about 10% of their sales are high-end graphics cards, now compare this to how many people currently have PCI-Express x16 (2%? If that), their high-performance graphics cards on AGP only sell at a minimum, so imagine the sales of high-end cards on PCI-Express.
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