folks - going to try out this CUDA encoding lark...

i have managed to get acceptable quality results using mediacoder, and a crappy old 8400gs card.
it produces the same quality video (well, to my eyes anyway) as autogk through an e6750 type CPU,
and slightly faster to boot....

i am considering buying a GTS250 which has many more cores, and should be a heap faster...

my question is: should i bother with a 1GB card, or will a 512M be sufficient? as the price difference is quite marked.

has anyone tried this, and been bothered to look at the GPU memory usage using a tool such as GPU-Z?

my thoughts are if it does not go near 512M then the cheaper card is the go.

cheers,