For the Raspberry Pi 3 it's mentioned here that the GPU has a 400 MHz (VideoCore IV subsystem) part and/or a 300 MHz (3D core) part.
BCM2837 runs most of the VideoCore IV subsystem at 400MHz and the 3D core at 300MHz (versus 250MHz for earlier devices).
Sadly, I don't understand what the difference is or how this is working.
- Does this mean the GPU has 700 MHz raw power?
- Or has two parts for two different jobs?
- Or works at 400 MHz for some jobs but only on 300 MHz for others?
Does anybody know and fully understand to explain?