News MSI Ups Its AMD X670 and B650 Mobos to Cut Boot Times in Half

You missed "and be prepared to reset your BIOS if it doesn't boot" which happened in my case on an ASUS B650E-I. In fairness the RAM is about at the limit of what it can handle on my system.

P4s weren't running 64GB RAM. DDR5's denser than ever and it is very easy to get settings that don't work in some circumstances, hence the need for training to tweak parameters for read preamble and chip select - it's not just your standard trace skew (adding a delay to certain lines based on the measured length of the board traces) or pattern reading.

Intel gives the impression of being more solid due to its higher bandwidth support, however I have heard some overclockers report random errors popping up in extended testing. AMD may be playing catch up with DDR5, and this is one symptom of it, but if it boots all the way it's probably good.