Next gen NVIDIA is GT200
The first time we heard about a product from NVIDIA called G100 was almost a year ago. This should be one of the codenames for the next generation NVIDIA card, but it might not be the only one.

D8E is Geforce 9800GX2, and that is already a done deal, but after that comes a new high-end card. We know that this product is expected in the middle of this year and that NVIDIA is working on it. The new codename is GT200 and we know that Dan Vivoli likes GT stuff, so we wouldn't be surprised that he came up with the name.
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GT200 has over billion transistors
We've learned that next generation NVIDIA is going to have more than a billion transistors and if made in 55nanometre it will be the biggest chip that was ever build.

As we said yesterday 45nm simply won’t be possible this year and as far as we know GT200 will be 55nm or in worst case 65nm. We get a mixed information on this particular matter.
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NVIDIA has 55nm chips taped out
NVIDIA already has the plans to transition to 55nm in 2008 as this half node means smaller and cooler chips. We are probably talking about second half of 2008 but NVIDIA is already talking to TSMC about going to this process.
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