Pemalite said:
Quad core CPU's have taken the role of the old dual-cores in terms of performance.
I.E. AMD's Ryzen's low-end are Quad-Cores.
Intels i3 is now Quad-Cores.
So it goes without saying... Regardless of the amount of cores that is chosen (8-Jaguar cores were roughly comparable to an Intel i3 Dual Core), having CPU performance around that level is probably something we might expect.
The Xbox 360 had SMT, but it did bring with it some caveats that I won't get into here.
In short though, SMT would not prevent backwards compatibility, but when leveraged right can allow you to extract more performance out of each core.
Not even a factor when we start talking about monolithic semi-custom SoC's.
They will go with whatever is cheapest. - Even the Xbox One X isn't using the biggest, fastest mechanical disks and that was a "premium" console.
SSD's/m.2 drives still command a premium and will do so even in a few years from now.
Plus the demand for NAND is increasing, so costs could actually increase, especially if NAND fabs retool to start taking advantage of higher DRAM prices.
The Xbox One X outselling the Pro is an inconsequential issue as the Pro isn't the bulk of Playstation sales anyway.
DDR5 isn't going to happen. JEDEC has only just finished demonstrating the DRAM and hasn't even finished ratifying the standard... And is thus probably still a few years away from a market release.
It does promise to double the bandwidth and density of DDR4, which means it's not going to be enough for next gen anyway unless you implement a stupidly wide bus.
It will be GDDR6, it will be what will offer the greatest benefits, higher capacities and good enough bandwidth/latency.
GDDR6 is currently ramping up production right now, so costs will be leveled out by the time 2020 hits.
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