GeForce 7900 Speculation
Posted by Hilbert Hagedoorn
We are closing in on the CeBIT exhibit next month where NVIDIA will launch several new graphics cards. Tiny bits of information start to leak here and there and when you compile them all you'll always get a reasonable overview of what to expect from the new products.
Now we know that G71 is the the GeForce 7900 series which will be manufacturerd at a 90nm fabrication process, the GeForce 7800 GTX was .11 micron, this inevitably ran into problems with the GeForce 7800 GTX 512MB. Producing them in large volumes was an issue and likely is also the reason why see so little of these boards available. The 90nm process should help bigtime and a 650-700MHz core clock speed for the GeForce 7900 GTX is very do-able. I believe there will be two versions .. 7900 GTX and GT with 32 and 24 pixel pipelines respectively.
NVIDIA is very likely to be bumping up the number of complete pixel pipelines. GeForce 7800 GTX featured 24 pipelines, I think it's a safe bet to state that 32 with the GeForce 7900 for the top notch model is a fact. The next factor is of course framebuffer e.g. memory .. There are claims there will be 256MB and 512MB versions made, this will be the GeForce 7900 GTX 512MB and the GeForce 7900 GT with 256MB. The memory is a sure factor ... it will will feature a clockspeed of 800 MHz of GDDR3 memory for the top model. So 1.6GHz memory and 512MB GDDR3 1.1ns memory while the GeForce 7900 GT will be clocked at 450MHz core / 1.32GHz memory with 256MB GDDR3 1.4ns memory.
It's suffice to say that if these little speculation here are right and NVIDIA can actually deliver enough volume of the chips this time this is going to be a killer series of graphics cards.
March 9th at CeBIT people, then NVIDIA will launch the new products, also expected to be announced at that point are the GeForce 7600 (
photos) series.
Source: Guru3D.com