I've had my 1080 for a little over a week now and have made some observations while using my HTC Vive with it in the Core. Something about the way the Core works with the Stealth (USB-C) means the system is unable to maintain a stable enough framerate for a comfortable experience on the Vive. Framerate stuttering is nausea inducing and borderline dangerous in VR. I knew from some video reviews that there is a slight performance hit with the Core so I put the 1080 in it instead of my desktop where I'm running a 980 Ti that has never dropped a frame with either the Vive or the Rift. Even with the performance hit using the Core, the 1080 should perform even better than the 980 Ti, but that doesn't appear to be the case. I had hoped after seeing Razer employees showing off the rift to Tested and explicitly stating that VR would work fine that I would be able to more easily move a PC into a room where I have enough space for Room Scale VR without having to lug around my Corsair 900D case into another room. Just wondering if anyone else has tried it and can confirm my experience is not an isolated incident.