Interesting thread, as I was about to drop $200 on a new graphics card.
I currently have an AMD 1055t CPU with 4GB of ram (will upgrade to 8Gb soon).
My current graphics card is an ATI 4680 (which isn’t supported by Vegas).
If I buy a better GPU, like the Nvidia GTX 460 for example, will my rendering times for all formats go down? And will my preview window show cleaner video? I can’t complain too much right now about performance- but if rendering times drop dramatically with a new GPU I’d probably buy one. If the video rendering/preview is mostly CPU dependent, then there’s no reason to get a new card.
Thanks for any help!