"Mind boggling indeed, but totally absent in the text and demo was any mention of power usage." That is because NVIDIA is really bad with power usage. Like Int

"Mind boggling indeed, but totally absent in the text and demo was any mention of power usage." That is because NVIDIA is really bad with power usage. Like Intel, they are optimized(the graphic chips) for being faster and faster, not taking less power. It is not so easy for them to change that. The same way ARM was created from scratch for mobile devices so was OpenVR (the graphic accelerator behind iPad and iPhone). OpenVR started in the desktop developing low power graphic cards, I used one of them but NOBODY CARED back on the day. People do not care at all about the Nvidia card consuming 200Watts because power on the grid is cheap. I guess they will make mobile devices for gaming with huge batteries and people that want high quality games will buy them.