The xbox one x makes an interesting road block. The system should continue to drop in price. If we are expecting a new sony system in 2019. The xbox one x will surely have dropped in price. So if your looking at a $400 xbox one x . What would sony launch ? an 8tflop machine ? I guess that would be double the power of the ps4 pro but from the xbox one x it wont be much of a jump. Perhaps GDR 6 will give it enough of a jump over the x ? 2020 perhaps they can get further and hit 10tflops or higher. It would depend on 7nm uptake.
For MS I would wager 2020/21 for a new xbox . 24 gigs of ram , GDR 6 , Navi and Zen 2 8 core / 16 thread @ 3.6ghz in the 30-45 watt range. For sony perhaps 2019/2020 with an 8 /16 ryzen (maybe ryzen + on 12nm) with 16 gigs of ram and a vega varrient with some tuning by sony. Of course if sony is happy with going later than 2019 I would imagine the machine morphs closer to what I predict for MS .
I also believe that as we get to 7nm a portable xbox one could happen
For MS I would wager 2020/21 for a new xbox . 24 gigs of ram , GDR 6 , Navi and Zen 2 8 core / 16 thread @ 3.6ghz in the 30-45 watt range. For sony perhaps 2019/2020 with an 8 /16 ryzen (maybe ryzen + on 12nm) with 16 gigs of ram and a vega varrient with some tuning by sony. Of course if sony is happy with going later than 2019 I would imagine the machine morphs closer to what I predict for MS .
I also believe that as we get to 7nm a portable xbox one could happen