PCI-X

[Gamingphreek]

I am talking about PCI-X and not PCI-E. I know it is a 66mhz 64bit slot and all but can someone tell me what the advantages are like, and also how it differs from regular PCI slots (aside from Clock Frequency, data bus width, and pin lay out). Also how does it stack up against PCI-E.

-Kevin

 

[LtPage1]

its faster than pci, and slower than pci-e. and its been in the apple g5 since its launch over a year ago.

 

[Gamingphreek]

I could have guessed the first things, and i knew the others.... i was looking for a bit more detail.

-Kevin

 

[Pariah]

There's nothing more to know. It runs at 66MHz, 100MHz, and 133MHz, and tops out at 1GB/s and is usually backwards compatible with "standard" PCI.

 

[mechBgon]

PCI-X 2.0 is the latest iteration, with bus speeds up to 533MHz: http://www.pcisig.com/specifications/pcix_20 Last time I looked, even 100MHz or 133MHz PCI-X was faster than PCI-E x4... anyone want to go dig out the math on that?

 

[Pariah]

133MHz PCI-X is 1GB/s.
4x PCI-E is 1GB/s per stream, 2GB/s full duplex.

PCI-X 2.0 (133MHz quad) is 4GB/s.

 

[Gamingphreek]

Woah... that is incredible. Imagine running a SCSI (320) on that sucker, that would scream. Also 10gbs ethernet.... *WOOSH* that is going to be flying for file transfers.

-Kevin