1. A display head for a graphics processor comprising: a first input path configured to propagate a first pixel generated by a first graphics processor; a second input path configured to propagate a second pixel generated by a second graphics processor; a pixel combiner coupled to the first input path and the second input path and configured to blend the first pixel and the second pixel to generate a blended pixel; and a selection circuit configured to select one of the first pixel, the second pixel, or the blended pixel as an output pixel.