BUS

Width
(bits)

Bus
Speed
(MHz)

Bus
Bandwidth
(MBytes/sec)

8-bit ISA

8

8.3

7.9

16-bit ISA

16

8.3

15.9

EISA

32

8.3

31.8

VLB

32

33

127.2

PCI

32

33

127.2

64-bit PCI 2.1

64

66

508.6

AGP

32

66

254.3

AGP (x2 mode)

32

66x2

508.6

AGP (x4 mode)

32

66x4

1,017.3