im trying to decide what would be better for a HTPC\file\media server, I have it set up to stream live tv to a 360 in my bedroom.. I'm learning more towards the 6450 because it's cheaper and uses maybe 20wts less at idle.. but for a small 15-20 bucks more you get 320 more SPs and twice the memory bus 64 vs 128 ..both options i'm looking at are passive cooled..i think my ATI 650 tuner probably does most of the decoding work for the recording/tv streaming anyways? so a basic model would be good enough right? so..? should I save my 20 bucks for some beer and smokes and get the 6450
or should i just buy the 6570 because faster=cooler? 