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Dell defection from Intel is a brain twister

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TWO THINGS THAT SOME people missed in the Nvidia Dell press release yesterday - but not us - were the fact that it wasn't an Intel chipset in a Dell box and the release of a true 2x 16x PCIe slot motherboard with a single CPU.

The Dell bit is huge, not because of the fact that it is using, gasp, something non-Intel, but it shows how powerful a marketing message SLi really is. A while back, ATI put that into a quarterly report, begrudgingly pointing out that it was a problem. The new fire lit under its chipset division and Crossfire also shows how critical this whole market segment is to box builders and graphic chip makers alike.

Dell defecting, or at least letting some light in through the cracks shows that even the mighty Dell bows to market pressure. It also shows that Intel has no 32+ PCIe lane chipset in the works for the near future, nor a multi-part chipset with PCIe on the south bridge. The volume isn't going to be high, Intel does not have a competitive gaming CPU, and won't for another year, so this is more a low volume face saver than a threat to Voodoo.

Still, if Nvidia can meet the stringent Dell supply chain requirements, there is an upside to leverage this into something more lucrative. Nvidia seems to know what it has, and is not shy about twisting arms to get what it wants. One has to wonder if this is what ATI is trying to counter than the occasional benchmark loss.

On the tech side, there is also big news. The new chipsets are the more significant thing, and have the potential to outstrip everyone else out there. It is called SLI X16, and it potentially provides a true 2x 16x PCIe slots, plus two 1x lanes, one slot comes off the northbridge, and the other off the southbridge. Unlike the NForce Pro line, the 2200 and 2050 chips, the new X16 does not need a second CPU and a second HT link to work right. In fact, it even works on Intel, getting them closer to being back in the gaming game.

While this may seem like a no-brainer, just put more ports off the southbridge, it is a lot more complex than that. The NB to SB connection has to be a fairly high speed link on the most vanilla chipset. Each PCIe channel is 2.5Gbps, so 16x is 40Gbps of bandwidth, not something you can just slap on because it meets a feature requirement checkbox. By comparison, the IDE, SATA, GigE and sound are a collective bandwidth pittance.

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