Technical Specifications for NVIDIA nForce4 SLI and NVIDIA nForce4 Ultra for Intel Platforms
| NVIDIA nForce4 SLI X16 |
NVIDIA nForce4 SLI |
NVIDIA nForce4 SLI XE |
NVIDIA nForce4 Ultra |
|
| PCI-Express | 2x16 and 1x2 or 6x1 | 1x16 and 3x1 or 2x8 and 3x1 | 1x16 and 3x1 or 2x8 and 3x1 | 1x16 and 4x1 |
| PCI Express # Lanes/Config |
40 lanes Flexible |
20 lanes Flexible |
20 lanes Flexible |
20 lanes Fixed (16,1,1,1) |
| NVIDIA® SLI™ Technology | Yes | Yes | Yes | No |
| CPU | Intel Socket 775 | Intel Socket 775 | Intel Socket 775 | Intel Socket 775 |
| SATA/PATA drives | 4/4 | 4/4 | 4/4 | 4/4 |
| SATA speed | (3Gb/s) | (3Gb/s) | (3Gb/s) | (3Gb/s) |
| RAID | 0,1,0+1,5 | 0,1,0+1,5 | 0,1,0+1,5 | 0,1,0+1,5 |
| NVIDIA® MediaShield™ | Yes | Yes | Yes | Yes |
| ActiveArmor™ Secure Networking Engine | Yes | Yes | No | No |
| NVIDIA® ActiveArmor™ Firewall | Yes | Yes | Yes | Yes |
| Native Gigabit Ethernet | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| USB ports | 10 | 10 | 8 | 8 |
| NVIDIA® nTune™ Utility | Yes | Yes | Yes | Yes |
| Audio | AC97 | AC97 | HDA (Azalia) | HDA (Azalia) |
