HI, I am not really sure what you mean by "install'. But, if your asking if you can install the Catalyst Driver on a Intel HD GPU then that's not possible. But, I don't see why you can't install a AMD Radeon R7 260 GPU given you have free PCI-Express slots, since I believe Intel hasn't locked TrueAudio form running on any of it's platforms yet since Intel SmartSound won't appear until Broadwell-DT's release in Q2 at which point, Intel might block TrueAudio and SmartSound co-existence. Anyhow, I wanted to know if I could add a R7 260 to my Intel CPU + nVIDIA GPU system just for the sound processing has I have a free PCI-Express slot (and space)? Thank you