PDA

View Full Version : G73 has 4 Quads/16 pipelines?


DSC
03-10-06, 02:23 PM
http://www.digit-life.com/articles2/video/g71-part2.html

Using the new beta of RivaTuner we found out that G73 contains four quads instead of three (16 pipelines)! One quad is just disabled (locked on the hardware level and cannot be unlocked). It all means that in future we may see something like 7600 GTX with 16 pixel pipelines, as the process technology is streamlined. In that case there will rise a question whether the memory bandwidth is sufficient for this core (the bus is 128-bit). But first of all, it's just an assumption, such GPU may be never launched; secondly, as memory prices go down, these cards may be equipped with the fastest memory, which will make up for the narrow bus; thirdly, there appear new games, which require GPU performance in the first place, not memory bandwidth; fourthly, there is some chance that designers made a mistake in registers and that's why the program detects an extra quad, which does not exist (that's not likely, but to err is human).

Interesting discovery, I wonder whether it's true or not.

mikechai
03-10-06, 07:26 PM
http://www.digit-life.com/articles2/video/g71-part2.html



Interesting discovery, I wonder whether it's true or not.

I remember someone at b3d pointed out that G73 has 4 quads before....
Hmm...

But then the limitation is at the memory bus. So unless it changes to 256bit bus or use the ultra fast GDDR4, NV won't unveil 4 quads G73.

Also I speculate the G71/G73 will be long life product which its prices will drop significantly and positioned to lower segment when G8x launches. Just like the 6800 series replacing those segments when 7800 taking the high end spot.

Dazz
03-10-06, 07:52 PM
With out FSAA & AF the cards are damn speedy and the 128bit is more then enough. Considering 85% of the buys never use FSAA or AF as they never go into their video control panel, either they don't know it's there or don't know what to do.

Joe Public
03-11-06, 10:30 AM
As far as I can tell by benchies, the 7600GT outperforms the 6800GS/GT, even with 4xAA turned on.