I would like it to be an ATI based card with at least 512MB DDR3, HDCP (I've noticed some are not), DVI & HDMI.
I'm not into gaming so this will be for films to stream to my 1080P TV.
I watched an MKV (8GB approx in size) of The Green Hornet last night and it wasn't smooth all the way through and when there was a lot of action the screen sometimes went green. I'm using an i3 processor so using the Intel graphics. My machine has 8GB of ram and I was using Powerdvd 11 to watch the film.
Any help would be much appreciated :-)