(blizard @ Mar 28 2005, 04:58 PM)And what about his PCI videocard
? Will a standard PCI slot on a PCIe mobo be a faster one or just the same?
Some benchmarks for nforce4 give the impression that also PCI will be faster, but that is just a wild guess....
Nope, PCI will still be old and slow. If someone found a way to make the PCI bus appear faster on a board that supports PCI Express, then they've done something very strange to make it look that way.
How PCI will be handled in hardware is probably by the use of a PCI to PCI Express bridge. PCI Express is not hardware compatible with PCI, so you can't plug a PCI card into a PCI Express slot. However, PCI Express is backwards compatible in software. Instead of the PCI bus going from the slot to the southbridge, it'll go from the slot to the bridge chip. The bridge will patch the PCI data into a PCI Express bus and send it on its way. The slowest link is still the PCI bus, so PCI devices still won't be able to send or receive data faster than they would normally.
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