| —— | AMD 760 | NVIDIA nForce 420D | SiS 735 | SiS 745 | VIA KT266 | VIA KT266A | VIA KT333 |
| Memory types (DDR only listed) |
PC1600 (200) PC2100 (266) DDR SDRAM |
PC1600 (200) PC2100 (266) DDR SDRAM |
PC1600 (200) PC2100 (266) DDR SDRAM |
PC1600 (200) PC2100 (266) PC2700 (333) DDR SDRAM |
PC1600 (200) PC2100 (266) DDR SDRAM |
PC1600 (200) PC2100 (266) DDR SDRAM |
PC1600 (200) PC2100 (266) PC2700 (333) DDR SDRAM |
| Max. effectivememory clock speed | 266MHz | 266MHz | 266MHz | 333MHz | 266MHz | 266MHz | 333MHz |
| Memory bus width | 64 bits | 2 * 64 bits | 64 bits | 64 bits | 64 bits | 64 bits | 64 bits |
| Peak theoretical memory bandwidth | 2.1GB/s | 4.2GB/s | 2.1GB/s | 2.66GB/s | 2.1GB/s | 2.1GB/s | 2.66GB/s |
| Maximum addressable RAM | 4GB | 1.5GB | 1.5GB | 3GB | 4GB | 4GB | 4GB |
| North/south bridge interconnect | PCI | Hyper- Transport | MuTIOL | MuTIOL | V-Link | V-Link | V-Link |
| Interconnect clock speed | 33MHz | 400MHz | 33MHz | 33MHz | 266MHz | 266MHz | 266MHz |
| Interconnect bus width | 32 bits | 8 bits * 2 | 8 * 32 bits | 8 * 32 bits | 8 bits | 8 bits | 8 bits |
| Peak theoretical interconnect bandwidth | 133MB/s | 800MB/s | 1.06GB/s | 1.06GB/s | 266MB/s | 266MB/s | 266MB/s |