AMD RX 7800 XT or 7900 XT? Help!

Update: I went with the 7900 XT ( XFX SPEEDSTER MERC310 Radeon RX 7900 XT )

AMD released their 7800 / 7700 XT cards today.  I had planned to buy one but watching reviews, such as Gamer's Nexus, it doesn't seem like the 7800 XT is standing out like I'd of expected.  Also the cost from sellers is $50+ over what AMD was advertising.  Thus I am back looking at 7900 XT (or XTX) cards at not that much more cost but with better performance.  Help!

 Another key is I want to get a copy of Starfield with the purchase.  Also I need to upgrade my PSU at the same time as my 650W is at it's max currently and a 7 series AMD will push it over a ledge.

 So I am looking for thoughts and input on 7900 vs 7800 XT cards and need opinions and thoughts!?