CPU: Definitely RYzen something. And also one with 8 cores. And based on Ryzen CPU architecture alone when compared to jaguar; even if it were running at the same clock of the jaguar cores we would be seeing around 2x the performance and I am certain it would be running at at least higher than 2.5Ghz. So that would translate to at least 3-4x the performance compared to what we have in the PS4 now.
GPU: At least 12TF. By at least 12TF i mean that's literally the worst they could do. Taking fabrication processes into account, they can get 36(40 actual CUs with 4 deactivated) in a console form factor in the PS4pro on a 16nm process. On the XB1 x we have 40CUs(44 actual) on a slightly bigger SOC. On a 7nm process we an at the very least double that CU count. So we are looking at 80/90 CUs in a SOC the size of what's in the PS4pro today. Couple that with better thermals and higher clocks we are looking at at least 12TF. Then add in any other architectural designs and that theoretical performance can only go up.
If they opt for a split hip design, where the have a dedicated cpu chip and dedicated GPU chip, then you could even double everything i just said about the GPU right now. I have a sneaking suspicion that this may be what they do, have my reasons for that but thats another story.
RAM: To HBM2 or not to HBM2. The PS5 wont got with HBM2, at least not initially. I believe it will come with 16 GB of ram spread across 8 ram modules with a bandwidth of around 570GB/s+. if they are going with just 8 modules to hit 16GB.
Mind, such Ram doesn't exist yet cause that would require 16Gbit ram modules (technically they do, caise samsung just started making them this year GDDR6). To put things in perspective, PS4 launched with 4Gbit ram modules (512MB) and had 16 of them in a clamshell config (8 on front and 8 on back of MB). Today it has 8Gbit ram modules (1GB) and thus only needs 8 modules to get an 8GB system. I dont think its far fetched that we could have 2GB modules by 2020.
They will also have a seperate pool of 8GB LPDDR4 ram reserved exclusively for the OS. Bringing total console ram to 24GB.
STORAGE: I believe the PS5 (and next Xbox) will finally jump to solid state drives. And of the M.2 variety. While the consoles will support PCIEx4 based nvMe drives by default (~2000Mb/s + reads) the consoles will come with a 1TB sata 3 based m.2 drive instead (~500Mb/s reads). Right now you can get a 512GB M.2 sata ssd for under $150.
Thats not what it would cost for sony and those prices will come down in the next 2/3yrs. Drives will be user upgradeable of course.
