I know its a dumb question but what does the 16x multiplier and the 1x multiplier on the new nForce4 mobo's PCI express.
I am assuming that is the speed that its is rated.
One more quick dumb question, can a PCi video card run on a PIC express slot better than an AGP?

Sorry but I have been a little retarded lately.

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Vinatge AMD at SocketAplus
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The names like x1, x2 and x16 have to do with the number of "lanes" that are on the PCI Express bus. A PCI Express x1 bus can transfer 250MB per second in each direction for a total bandwidth of 500MB per second. Add on another lane and you have a PCI Express x2 bus that has twice the total bandwidth. An x16 bus is basically 16 x1 buses that are grouped together giving a total bandwidth of about 8GB per second.

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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....



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The PCIe 1x slots that may eventualy replace PCI all together are much smaller and physicaly and not compatible with any PCI cards.

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The Standard PCI slot in PCI-E board...what do you think? The Standard PCI slot is still STANDARD. There is no different for performance whatever a standard PCI slot on mobo of PCI-E....non-PCI-E...

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------Zinc Schumacher------

QUOTE (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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QUOTE
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.


Some devices AFAIK are still technically ISA, like the floppy drive, parallel and serial port. Although I did read somwhere that they are on a 33MHz ISA software compatible bus called LPC or something like that. I could be wrong though but I think that it the slowest link

srg

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