Advantage to go prebuild xbox-pc route vs new console- it wont be constrained to 250W console form factor(even ps5pr0 that has biggest powerdraw of all consoles to date has exact 240W limit it can eat, measured by DF).
It could mean even if same/similar cpu/gpu is put in both ps6 and that pre-build xbox pc like, on xbox side it can have much higher clocks, like 30-40% higher, ofc it can also mean u dont even need to go for same/similar specced low power hardware, u can go for much bigger/powerhungry option which will have total not 250 but 500-600W powerdraw, which means it will give visibly more performance.
Hell xbox could go with nvidia card this time around even, who really knows.
Lets just check how it would look today, aka both sony and microsoft going with whats avaiable for them at this very moment:
CPU side both would go with 9800x3d, just sony would have to downclock it to around 4GHz.
GPU wise best sony can go with, and thats coz they only got amd to chose from on top of total 250W powerdraw- is this:
AMD Navi 48, 2520 MHz, 3584 Cores, 224 TMUs, 128 ROPs, 16384 MB GDDR6, 2518 MHz, 256 bit
www.techpowerup.com
If u check how that gpu looks powerdraw wise(220W) its basically close to max it can be for console form factor(u still gotta have decent cpu/ssd/vram etc which will likely draw rest of the 250W powerlimit).
Now xbox could have 2 or even 3 different versions with weakest being 5060ti 16gigs, midrange(thats still 17% avg perf above amd's card ) would be 5070ti, and elite/premium option would be 2x stronger from ps6 5090...(maybe with tiny downclock, but still 2x performance in raster, over 2x in rt/ai upscaling capabilities) with some hefty pricetag of 1999 usd?
Ofc its pure speculation, we dont know how its gonna look in 2027/2028, by then amd will likely have highend card avaiable and who knows maybe nvidia drops the ball even more, what we know for sure by then 3nm process node will be avaiable for big dies, aka console APU(250-400 mm² ) and even bigger desktop pc cards( here they will easily break 500 mm² maybe even 600 mm²- 4090 has 609 and that was already on 5nm node back in 2nd half of 2022, 5090 has 750 but that required very mature 5nm node).
