The new NVIDIA nForce 650i SLI and 680i SLI are Intel Core 2 compatible and will take the place of nForce 570 SLI and 590 SLI Intel Editions. NVIDIA’s new nForce 650i SLI and 680i SLI chipsets are identical to the previously released nForce 570 SLI and 590 SLI Intel Editions. The new nForce 650i SLI SPP pairs with an nForce 430 SLI MCP to provide a total of 29 PCI Express lanes or 2 x8 when running in SLI mode. NVIDIA’s nForce 680i SLI is essentially a revised nForce 590 SLI Intel Edition. Manufacturers were reluctant to adopt the C51 nForce 590 SLI Intel Edition due to front-side bus scaling issues. Nevertheless the C55 nForce 680i SLI comes with the nForce 590 SLI MCP, and support for two full-speed PCI Express x16 slots. Other supported features of the nForce 650i SLI and 680i SLI include 3.0Gbps SATA, Gigabit Ethernet, ATA-133, USB 2.0, high definition audio and support for five PCI slots are supported by both chipsets.