If you did that, you'd stumble into the Apple GPU's lack of tensor acceleration hardware. For an Nvidia-like experience you'd have to re-architecture the GPU to subsume the NPU's role, and if that was easy then everyone would have done it by now.
M1/M2 shared a GPU design, same with M3/M4. So maybe M5 will have a new design that includes tensor cores in the GPU.
M1/M2 shared a GPU design, same with M3/M4. So maybe M5 will have a new design that includes tensor cores in the GPU.