Common Buses and their Max Bandwidth
PCI	132 MB/s
AGP 8X	2,100 MB/s
PCI Express 1x	250 [500]* MB/s
PCI Express 2x	500 [1000]* MB/s
PCI Express 4x	1000 [2000]* MB/s
PCI Express 8x	2000 [4000]* MB/s
PCI Express 16x	4000 [8000]* MB/s
PCI Express 32x	8000 [16000]* MB/s
USB 2.0 (Max Possible)	60 MB/s
IDE (ATA100)	100 MB/s
IDE (ATA133)	133 MB/s
SATA	150 MB/s
SATA2	300 MB/s
SATA3	600 MB/s
Gigabit Ethernet	125 MB/s
IEEE1394B [Firewire 800]	~100 MB/s*