I believe it's not the cpu or gpu limiting the field of view. if you read the patents behind the waveguides, the real limitation seems to be in the waveguides.

I believe it's not the cpu or gpu limiting the field of view. if you read the patents behind the waveguides, the real limitation seems to be in the waveguides. They need to make them thin enough for light to pass through, while at the same time refract light into you eyes at angles that don't result in major image distortions.