VR-Zone: NVIDIA MCP77 with 15xUSB/22xPCIe?
Saturday 16th February 2008, 04:30:00 PM, written by Arun
Previous rumours from HKEPC indicated the MCP78 would only have 19 PCI Express lanes, and four links (which limits it to 18 lanes in SLI chipsets). Other websites also indicated that the Intel equivalent to MCP78, MCP79 aka MCP7A, would have 20 PCI Express lanes. Both chipsets were also claimed to have 12 USB ports.
So now, we've got VR-Zone claiming that MCP77M will have two SKUs: one with 15xUSB ports & 22xPCIe lanes, and another with 10xUSB ports & 20xPCIe lanes. Only the the former will support Hybrid SLI and all of PureVideo HD. And to add to the confusion, MCP67 and MCP68 last year were literally the same chip.
And if your head isn't spinning yet, Digitimes has hinted at a MCP7C chipset for Intel platforms slated for August, and they claim it'll only have a 64-bit memory bus. A Google search for MCP7B returns nothing, so who knows what that is and if it even exists. And unlike MCP78/MCP77, we won't know what's true and what isn't on that front for quite some time.
Needless to say, the rumours about NVIDIA's chipset roadmap are highly confusing. Massive delays haven't helped things (MCP78 has been delayed a billion times already), and it certainly doesn't look like their southbridge roadmap is that exciting either way: the fact that rumours have indicated they're reusing the nearly 2 years old MCP55 in the nForce 790i certainly speaks for itself.
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