What do yo think will be the hardware specifications of PS5 if it arrives arround 2019-2020?

[Bofferbrauer2]

fatslob-:O said:

Intrinsic said:

I think you are underselling the value of GDDR6 and over estimating the needs of bandwidth in games next gen. 800GB/s is more than enough for next gen games. And sure as hell is a far cry from bandwidth saving checkerboard rendering techniques. 

Secondly, while HBM as a tech will be 5yrs old by 2020, that has nothing to do with the maturity of the tech. Eg the electric car has been there before ice cars were made but are only mature enough today over 100yrs later for the mass market. Same applies here. HMB or even HBM2 may be well known technology by 2020, that doesn't in any way mean it's ready to be mass-produced to the tune of 30M packages reliably every year for both the PS5/XB2. Hell even Samsung is hedging their bets with regards to the tech as opposed to doubling down on it completely .

As with LPDDR4, it really doesn't matter if it's dated by then. you won't be seeing that age of your ram on the home screen. What's important is it's price, performance and ease of use. And you do realize that LPDDR4 is basically smartphone memory right? That's what you see in phones. So basically I'm saying the ram used in the next gen console for the OS will be a smartphone memory solution. Cheaper. Uses less power. Smaller form factor and less complicated. If LPDDR4 isn't being used by the smartphone industry by 2020... Then it would be whatever replacement they are using that I expect to power the OS of the PS5. Unless you feel smartphone memory bandwidth is too low to stream Netflix and YouTube and manage some system operations.

@Bold No, bandwidth is going to become a massive bottleneck in the coming years and graphics programmers will have to rethink optimizations on the algorithmic side. Base PS4 has a flops/byte ratio of 10.4 while it it is nearly doubled on PS4 Pro with 18.9 flops/byte ratio while RX Vega 64 is pegged at an alarming 26.2 ratio. 800 GB/s is hardly enough for next generation and Sony (not just them but the whole industry) will definitely need checkerboard rendering to amplify the low bandwidth deficit ... 

The problem with LPDDR4 is that it's gong to go out of production by mainstream memory module manufacturers before next gen consoles launch so I'd prefer if we adopted the latest standard instead and if we want lower power consumption out of DDR5 we can just clock it lower ... 

You do.

Just for comparision's sake RX Vega has less than 500GB/s even in the liquid version which clocks in at 13.7 TFlops which by 7nm will be about the maximum a console can reach before getting too expensive even by 2020-2021.

What you failed to see possibly is that in the last couple years several techniques had been developed to limit the bandwidth consumption of GPUs, with low-level programming further toning it down (less drawcalls and unnecessary transfers). Without those the Switch would be choked by it's bandwidth, as would Smart devices and APUs. And GPUs also, because then we would already need more than 1TB/s in Bandwidth in high-end GPU