| 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 |
| PCI-X | 32 | 133 | 1000 |
| PCI-X 2.0 | 32 | 266 | ? |
| PCI-X 2.0 | 32 | 533 | 4000 |
| AGP | 32 | 66 | 254.3 |
| AGP (x2 mode) | 32 | 66x2 | 508.6 |
| AGP (x4 mode) | 32 | 66x4 | 1,017.3 |
| DDR 400 | 32 | 400 | 3200 |
| DDR 533 | 32 | 533 | 4300 |
| DDR 800 | 32 | 800 | 6400 |
| USB 1.1 | 1 | ? | 1.5 |
| USB 2.0 | 1 | ? | 60 |
| ATA | 32 | 66 | 100 |
| ATA-133 | 32 | 133 | 133 |
| SATA-150 | 1 | ? | 150 |
| Ethernet 10BaseT | 1 | ? | 1.25 |
| Fast Ethernet 100BaseT | 1 | ? | 12.5 |
| Gigabit Ethernet | 1 | ? | 125 |