An integrated GPU with 64 cores? (Compare this to the 112 "cores" of the 3090) At that point the distinction makes no damn difference. The rumor mills of the speculated that AMD is going to release high performance server APUs with 32 GB HBM years ago.

Really, if you can fit the memory on top of the GPU, then there is no meaningful distinction between a discrete and integrated GPU because the fundamental difference on the PC platform is whether the iGPU uses the system DDR RAM or whether it uses dedicated GDDR RAM. That distinction really doesn't exist on Apple's M1 platform because the memory is placed directly on top of/next to the SoC.