| NVIDIA nForce 680i SLI | NVIDIA nForce 680i LT SLI | NVIDIA nForce 650i SLI | NVIDIA nForce 650i Ultra | NVIDIA nForce 630i | |
| Segment | Extreme Enthusiast SLI | Extreme Performance SLI | Performance SLI | Performance | Mainstream |
| Socket | Intel Socket 775 | Intel Socket 775 | Intel Socket 775 | Intel Socket 775 | Intel Socket 775 |
| CPU | Core 2 Extreme (dual and quad core) Core 2 Quad Core 2 Duo Celeron D Pentium 4 Pentium D 9XX Pentium D 8XX |
Core 2 Extreme (dual and quad core) Core 2 Quad Core 2 Duo Celeron D Pentium 4 Pentium D 9XX Pentium D 8XX |
Core 2 Extreme (dual and quad core) Core 2 Quad Core 2 Duo Celeron D Pentium 4 Pentium D 9XX Pentium D 8XX |
Core 2 Extreme (dual and quad core) Core 2 Quad Core 2 Duo Celeron D Pentium 4 Pentium D 9XX Pentium D 8XX |
Core 2 Extreme (dual and quad core) Core 2 Quad Core 2 Duo Celeron D Pentium 4 Pentium D 9XX Pentium D 8XX |
| FSB (MHz) | 1333* MHz | 1333* MHz | 1333* MHz | 1333* MHz | 1333* MHz |
| Extreme FSB Overclocking | Best | Good | Good | Good | N/A |
| NVIDIA SLI™ Technology |  2 x16 or 3-way** |
2 x16 |
2 x8 |
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| ESA Support | |
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| NVIDIA System Monitor | |
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| NVIDIA Control Panel – Performance Group | |
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| Third PCIe Graphics Expansion Slot | |
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| SLI-Ready Memory (MHz) with EPP | 1200 MHz | 800 MHz | N/A | N/A | N/A |
| JEDEC DDR2 Memory (MHz) | 800 MHz | 800 MHz | 800 MHz | 800 MHz | 800 MHz |
| ***NVIDIA LinkBoost™ technology | |
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| PCI Express | |||||
# Lanes |
46 | 46 | 18 | 18 | 18 |
# Links |
9 | 9 | 4 | 3 | 3 |
Configuration |
16, 16, 8, 1, 1, 1, 1, 1, 1 | 16, 16, 8, 1, 1, 1, 1, 1, 1 | 8, 8, 1, 1 or 16, 1, 1 |
16, 1, 1 | 16, 1, 1 |
| SATA/PATA drives | 6/2 | 6/2 | 4/4 | 4/4 | 4/2 |
| SATA speed | 3Gb/s | 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 | 0,1 |
| NVIDIA MediaShield™ Storage Technology | |
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| Native Gigabit Ethernet Connections | 2 | 2 | 1 | 1 | 1 |
| NVIDIA FirstPacket™ technology | |
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| NVIDIA DualNet® technology | |
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Teaming |
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TCP/IP Acceleration |
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| NVIDIA nTune™ Utility | |
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| USB ports | 10 | 10 | 8 | 8 | 8 |
| PCI Slots | 5 | 5 | 5 | 5 | 5 |
| Audio | HDA (Azalia) | HDA (Azalia) | HDA (Azalia) | HDA (Azalia) | HDA (Azalia) |
* Available on CPUs supporting 1333MHz FSB
** Available when paired with three NVIDIA GeForce 8800 GTX or GeForce 8800 Ultra graphics cards
*** Note: NVIDIA LinkBoost™ technology has been removed as a feature from NVIDIA nForce® 680i SLI
