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Old 12-15-05, 10:59 PM   #34
snowmanwithahat's Avatar
Join Date: Jul 2004
Location: Michigan
Posts: 974
Default Re: Nvidia 6800GS AGP arrives next week

Originally Posted by deimos47ca
Excuse me, but that is just nuts.

First of all, you post and link to theinquirer (no less) with such certainty and trust, that few non-naive people even devote to mainstream media like cnn or bbc.

Do you have any doubts? The good old NV40 chip was made by IBM at Fishkill (New York) using 130nm.. IBM is moving away from manufacturing so unlikely they would take more orders(all AGP: 6800, 6800GT and 6800U are all the same die that was made by IBM). The chip used for PCIE 6800 is totally different and a separate die, made by TSMC 110nm, and hence the reason you hear all the PCIE people getting such good overclocks with their 6800's (6800GT and 6800U PCIE are a third die, which ironically, is still 130nm, even though the parts require higher clock).

The announcement of the 6800GS PCIE was very natural, because as I mentioned earlier, most people were getting very good overclocks (440.. even 460Mhz) thanks to the finer manufacturing process, which also allowed to do this without voltage increase and producing relatively little extra heat.

If nVidia does force a 6800GS AGP on the market, we can be sure that it will be small production (not many NV40 chips left), and like 6800GT and 6800U, will require higher voltage than the original 6800 AGP.

And ofcourse whatever benefits the 6800GS gained by using the 7800GT/GTX PCB, will be lost, because that is a PCIE PCB, and nobody is going to go out of their way to design a custom PCB for a few AGP consumers.

prognosis negative
(I'm a skeptic)
i'm also a skeptic, like you said several things point to it not happening, #1 to me is that it's based on the 7800 GT PCB, which means that the "good old NV40" will not be as overclockable, and it will pretty much be just a hybrid between a 6800 and a 6800 GT, which it is anyway, but i think it'll lose it's overclockability if bridged down, and also, if it is the true nv40, it will have a hard time running at those clocks all the time, very few real nv40 chips can do 425mhz with great cooling (my card being one, i max at 420) and another point is that the 6800 GS is a total new chip in itself, the NV42 which is based on the NV41 (the native PCI nv40) so that right there kills the hopes of the "true" 6800 GS coming to AGP without a port, so the inquire must have reported it wrong, it's more like a 2nd wave of overclocked 6800's with new memory, i highly doubt it'll retain it's overclocking properties and it won't be just like the pci-express card when it does come out, if it comes out, basically it won't be a true 6800 GS either way you put it, and more than likeily it won't be using the 7800 GT pcb also, good luck with it if they come out though, not trying to rain on your parade, i'm just a skeptic
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