| 規格 | 転送レート | バスクロック | バス幅 |
| ISA (Industry Standard Architecture) | 8MB/Sec | 8MHz | 16bit |
| PCI (Peripheral Component Interconnect) | 132MB/Sec | 33MHz | 32bit |
| AGP (1x) (Accelerated Graphics Port) | 266MB/Sec | 66MHz | 32bit |
| AGP (2x) | 533MB/Sec | 133MHz | 32bit |
| AGP (4x) | 1066MB/Sec | 266MHz | 32bit |
| USB (Universal Serial Bus) | 12MB/Sec | ||
| Cバス (9821シリーズ汎用バス) | 10MB/Sec |
| SCSI-1 | SCSI-1 | 5MB/Sec |
| SCSI-2 | Fast SCSI | 10MB/Sec | Fast Wide SCSI | 20MB/Sec |
| SCSI-3 | Ultra SCSI | 20MB/Sec | Ultra Wide SCSI | 40MB/Sec | Ultra2 SCSI | 40MB/Sec | Ultra2 Wide SCSI | 80MB/Sec | Ultra3 SCSI | 80MB/Sec | Ultra3 Wide SCSI | 160MB/Sec |
| IDE | PIO Mode0 | 3.3MB/Sec | PIO Mode1 | 5.2MB/Sec | PIO Mode2 | 8.3MB/Sec | PIO Mode3 | 11.1MB/Sec | PIO Mode4 | 16.6MB/Sec | Ultra DMA/33 | 33MB/Sec | Ultra DMA/66 | 66MB/Sec |