They win absolute performance on Desktop CPUs but lose on perf-per-watt.
An argument could be made for AMD's 5800x3d in gaming, but when paired with a 4090, the intel CPUs take the lead.
Heat distribution as far as I can tell, this video from derbauer shows that shifting the way the cooler contacts the CPU lid (aka offset mounting) can provide drastically lower temperatures which means the cpu is allowed to draw more juice. In the video [1], there's an 8% improvement which tbh is massive; though it seems that the creator missed that, so ignore the conclusion, look at the numbers. An 8% improvement would have put AMD in the lead with intel unable to compete.
Here is the catch; when Intel and AMD presented their slides, nobody could disclose information about the Lovelace performance, and therefore all comparisons were made using a 3090ti, and in that scenario, even in Intel's own graphs, the 5800x3d was actually performing very well; so much so that they were playing coy with its performance;
AMD has a huge gaping pricing hole between AM4 and anything AM5, which makes Intel 13th gen rather more attractive. And the 5800X3D is actually faster than the AM5 parts in some titles iirc