NV30 info...

[Mare]

David Kirk (NV):

I can't share any technical details on NV30 memory architecture, but I would answer to you pointing out that a wider data bus gives more bandwith, but with a cost: a 256 bits wide architecture is very complex and expensive too. High-end boards are very expensive. Ask to customers to pay a higher price to integrate a 256 bits wide bus it's an overkill at the moment.

The true problem, in my opinion, is to determin if such technology (256 bit bus) today is demanded and needed. I'll explain myself: if in order to improve the quality of the experience 3D, it's not necessary to generate more pixels, but it's more important to render every single pixel more accurately (not more pixels, but better pixels), need of more and more complex and fast GPU, not increased video memory bandwidth. If we don't increase the number of pixels on the screen, in fact, a increased bandwidth does not allow us to obtain a qualitative improvement of the generated image; it would help in presentational terms if they used more pixels, but at the moment with the taken resolution of 1600x1200 @ 32bits as parameter of reference for the games 3D we do not see the need of having more memory bandwidth, regarding how much today we can supply with the card GeForce 4 Ti4600.

Quote:
Q. At least one of your competitors will release a solution with 256 bit memory bus, therefore raising the bar.

A. Probably this compeitor has opted for one solution that is contrary to our opinion...they are going to supply more pixels as a means of delivering higher quality. It's a matter of different approaches, and I believe ours is better.


Quote:
Q. Will it be possible to have DDR Memory with frequencies much higher in the next few months? The near-term limits seem to be between 700 and 750 Mhz, with the most recent chip from Samsung at 2 ns that they still have yet to debut on the market.

A. The next generations of cards will come with faster memories. The problem, however, is not just one of having more bandwidth, it's how well you take advantage of it.


Quote:
Q. Hardware Displacement Mapping in DirectX 9: what you can say to us?

A. ....obviously in nVidia we know many things about the new API but, having signed a NDA with Microsoft, I cannot comment.

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