amdvbflashWin does not find electronic signature on HD8650 graphics card. I found a used Radeon and the ASUS motherboard did not recognize its PCIe_x16 entry, but did turn the fan. The HD685x.ZCFC does not heat so the impression is that a core GPU/elpida memory use is very light.
That being said, the GPU-z utility does not change to report anything useful, except for the readings of an IGX in operation.