Ah, i see. I thought I recalled seeing the option in Windows 7, but I was probably confused with something else. I know Afterburner had the option though.
I've tried using MSI Afterburner + it's RTSS, and HWiNFO64 + AB's RTSS in Windows 8, and neither will show or report the value for GPU memory usage.
GPU-Z however reports it fine
I like being able to see how much gpu memory 3d apps and games use :) Is there any way to possibly get it...