How can a 8 Core ZEN2 be the bottleneck for 60FPS when we had plenty of 60FPS games on much much weaker hardware before, is GTA6 expected to run some advanced physics on every NPC?
I think it's important to remember that 'physics' is not simply cool ragdoll stuff or whatever. Everything that is moveable and has collision attributes requires physicalization(aka physics). And with GTA, that means a LOT of things. It's one of the big things many people dont appreciate about Bethesda RPG's and the associated demands.
You also have an entire driving model embedded in the game with its own physics, along with other vehicular modes, with various levels of physical interactions possible. NPC's also require AI processes to govern how they act, and that's not just with the simple models randomly wandering around, but also combat AI, driving AI, flying AI, etc. There's also the massive draw distances involved, along with the heavier demands of RT-style lighting. And all this stuff has to be running all at the same time in this hugely dense, high fidelity simulation.
A lot of people simply underestimate how important CPU's still are for games. I think was especially easy to overlook in the XB1/PS4 era because CPU demands were just so relatively light thanks to the lackluster Jaguar CPU's in those consoles that determined how developers built games in that generation.
YET, even in that generation there were actually a lot of 60fps games. Because it really doesn't matter what generation you're talking about, when you're dealing with fixed spec hardware, developers always have the choice whether to target 30fps or 60fps, depending on their ambitions. We've had 60fps games since the 80's.
I see this type of speculation often, and it always raises the same question for me: What makes people think that Sony would be capable of designing and implementing GPU innovations over and above what AMD can do in their own IP?
I think what makes people think that is partly a holdover from days gone when console manufacturers actually did used to work with chip designers to build custom processors for their needs. Chip design is so much more complicated nowadays though, and there's much less room for revolution than in the heyday of innovative console hardware. And with cost restraints and do-it-all APU's, console manufacturers are more reliant than ever on existing tech IP that they can package together into something that will work for themselves.
I'm with you 100% that I dont think either Microsoft nor Sony are offering up actual chip design specifications or targets that are anything beyond what AMD basically already can or will offer. They're moreso just kind of ordering off an a la carte menu of technologies. And given the rumored leak of a late 2024 release for PS5 Pro, I would guess that *if* it has any particular RT boost beyond RDNA3, it wont be some 'Sony special', it will simply be some RDNA4 DNA included, which shouldn't be surprising since RDNA4 is expected to be out by then.