Well lady there have been cad cards for a while;
http://www.shentech.com/3dwivppro51a.html
And soon we'll see dual cards running:
http://www.nvidia.com/page/sli.html

Anyways I was just saying Doom 3 is pushing beyond current hardware,
more so than Far Cry which I can’t play at good fps maxed out.

__________________
March or croak, march or croak
All your lives a cosmic joke
Fill your days with piss and smoke
The wolf waits at your door
--Lemmy