Unless MI350P will be much cheaper than 6000 Pro, which is unlikely given its VRAM, it will lose to it, because you'd need 2 of either.
I was remarking on the MI350P because I've had a hard time procuring "small" CDNAx systems (for e.g. development, experiments and lower-profile servers) and OAM seemed very niche (not if you're aiming for density and training/inference...).
I hope the MI350P fills a lower part of the spectrum and I can start massively porting CUDA stuff or at least work on HIP and ROCm and what I need to make most or some of our CUDA stuff run on AMD HW, then how make it run fast.