There were some other recent rumors from MS leakers that said that MS was sending out tiny batches of non-final dev kits to devs, because MS wants to keep the final specs secret until it is too late for Sony to change their PS5 design. I'm pretty sure that MS wants to hold on to the most powerful console crown that they obtained when XB1 X topped PS4 Pro. I just hope they don't go too overboard on specs, beating Sony on specs is fine, but they need to keep the production cost low enough so that they can afford to match price with PS5, or at least stay close to it. A $100 price difference would be a huge mistake imo.
Microsoft can eat the cost if they want, they can just make powerful consoles more expensive than Sony and cut the price. It comes to price strategy and how they can recoup the cost. But I believe this rumor nonsense, because both consoles will be identical.