RDNA2 - man I told you I am not technologically savvy and you go and speak fucking robot! WTF lol.
What is game pass exactly? I have seen it listed on games, do I need to have it in order to play those games or....
RDNA2 is the newest architecture with all the latest and greatest features that give the Graphics the most umph. It is difficult to explain without going into details you dont care to know. Both Consoles use AMD for processor and graphics, Microsoft didnt skimp on either and Sony did on both by comparison.
you dont "need" gamepass. what it is is if you have it all the games included in its library are free to play (like watching a movie on netflix) all of microsoft studio games are always free from the moment of release to download and play and will never leave gamepass, so far they made a deal with EA that everything on the EA access list is now part of gamepass too so huge steady library of AAA games there, then there are a bunch of others that move in and out depending on contract length.
I just got done tellin a buddy about it.
The cool thing is right now there is a cool deal if you have 3 years of xbox live gold (the online service that both consoles have a version of) it is 60 a year for xbox live gold, you can convert it all to game pass ultimate for 1 dollar (game pass ultimate is 180 a year and would normally include xbox live gold in it, its a weird promo they've had for a while now that at some point will go away but while it is there it is badass)
If you look at the gamepass library anything that says "game pass" on it is free to play with game pass its pretty sick if you do get it and want help with the whole getting 3 years of ultimate upgrade for the cost of just regular xbox live gold lemme know, its worth it.
I actually just did it again for my kids, i bought a year worth at the beginning of the lockdowns and didnt think id want more so i did an alt account and did another 3 years for them (you can share permissions/license between 2 consoles)
There is more to say but so much more it could fill pages so more if you have questions that have peaked curiosity id say look up what game pass titles are and see if those trip your trigger. Literally any microsoft owned studio goes to Game Pass day 1 of release of brand new AAA game so it is pretty cool there too.
There are a few areas for you to look into now if you really wana know some articles will probably explain it better than i, im a terrible teacher.