The HP EliteBoard runs a "AMD Ryzen AI 300 series processor", "50 TOPS NPU", with "800M series graphics" and up to 64gb of memory.

As far as I've seen, they have not publicly stated which specific processor its running. This combination means: Its not a Ryzen AI Max 300 processor, because these run the 8060S integrated graphics. (also, they'd have probably stated Max if it was). Moving down-range: the HX375 has 55 NPU TOPS, so its more likely that the best chip it could run is the HX370 (12c/24t); but it could be as low as the 330 (4c8t).

The HX370 posts geekbench 6 scores of single core ~2917 multi-core ~15249.

For comparison: the Apple M5, found in the iPad Pro and upcoming Mac Mini, scores single core ~4291 multi-core ~17469.

Overall, I think this is cool and evocative, and depending on the chip they use the performance could be pretty solid. However, I don't like the idea of a desktop PC being so integrated with a peripheral, such as a keyboard or monitor.