Unless I'm mistaken, this isn't about the GPUs inside the MBP but about the external ones you can connect separate power and a Thunderbolt cable to. In that ca

Unless I'm mistaken, this isn't about the GPUs inside the MBP but about the external ones you can connect separate power and a Thunderbolt cable to. In that case, you're not talking about a Radeon Pro 5600M but rather a desktop-class RTX 3090 with 24GB of high-performance RAM and a TDP of 350W. A MBP couldn't hope to power or cool one of those with a built-in GPU, never mind come close to matching the performance or supporting CUDA without nVidia sueing Apple out of existence.