[Starstream]

Arm chipsets are system on chips so everything is contained within one chip. In this case the VPU is part of the chipset but not part of the GPU like it is on PC GPU's for instance. The VPU only handles hardware accelerated decoding of videos nothing else. The Broadcom CrystalHD card you can install in a PC would be another example of a VPU (which is also supported by XBMC).