True, but people always forgot the most important thing: software. Even when Big Navi and Ampere are out and their specs dwarf the next gen consoles on paper, it's irrelevant because nearly every game available today is made with 1.5-1.8 TFLOP machines as the target. Jumping that up 8-10x will take
YEARS for developers to fully utilize and take advantage of.
The next gen console spec will become the new baseline, not the high end Navi and Ampere GPUs. And depsite the fact that PC hardware will continue to move forward during the next console generation, developers will still not be maxing out that 10-12 TF power envelope for some time.
So the fact that there may be 30 TFLOPs GPUs on the market by the end of the next console cycle is moot. It's like having a Ferrari engine in a Camry....nice to say you have it but the engine is not being utilized to anywhere near it's potential.
In others words, hardware always moves much faster than software