[PD] Gem for a dual G5

[Amos Elmaliah]

hi Chris, list;

I am trying to figure out ways to improve gem setup on my machine.
It seems like the bottle neck is the graphic card (the Geforce fx 5200) 
as the frame rate drops when I texture many goes but cpu's staying 
stable.  Is there a way to have cpu/ddr share these things in gem? 
Should I just try to upgrade to a better ATI card or are there any 
other options?
Just out of curiosity, what the specific difficulties of coding pd and 
gem for 64 bit machines?
Thanks