I also use use davinci resolve and recently purchase the M1 Max 16” 64gb 1tb and it will run most effects very smoothly. I’m sure it will run smoother than the M3 pro since the pro has half the gpu cores. If you want an M3, you’ll need to step up to the M3 Max 30 core which may be slightly faster than the M1 Max 36 core. I can’t find any comparisons but it should be at least the same if not faster and it has hardware ray tracing and shadowing built in if your effects use those.
I also use use davinci resolve and recently purchase the M1 Max 16” 64gb 1tb and it will run most effects very smoothly. I’m sure it will run smoother than the M3 pro since the pro has half the gpu cores. If you want an M3, you’ll need to step up to the M3 Max 30 core which may be slightly faster than the M1 Max 36 core. I can’t find any comparisons but it should be at least the same if not faster and it has hardware ray tracing and shadowing built in if your effects use those.