What chipset is that? I'm genuinely asking. I dont keep up on those things much. That's pretty crazy for a portable chipset to be equal to or above a ps4 in power, and awesome. But I imagine that it would be far too expensive to put into a Nintendo handheld. Hopefully in 3 years though....
The chipset doesn't exist because it wasn't released yet. Nintendo will use tech released in between 2020 and 2021. There's nothing crazy about a switch 2 being a lot more powerful than a ps4 just like there's nothing crazy about the switch being a lot more powerful than the ps3.
Seeing that the A12x in the 2018 IPad Pro is the only chip on the market that even comes close to your claim (and not that close either, it has Xbox One S like performance according to apple) and the cheapest device it‘s in goes for 800$+, what you‘re saying is pretty outlandish.
Also todays technology is extremely relevant to a product coming out 2-3 years from now, seeing that the tegra x1 is a 2015 chip in a 2017 product. And even then it was only really cost effective to use it in the Switch since it was somewhat of a dead end for Nvidia, who pivoted away from gaming applications with the successor chips hard. Nvidia had stock to clear and Nintendo got a good deal.
It‘s fair to assume that Nvidia is working on something more custom and for Nintendos next console, and they’re probably going to make sure that it has the most current architecture, but it‘s not going to be some monster, top of the line chip if they want to have any chance of maintaining a 300$ pricepoint.
The tegra x2 all the way from 2015 is already on par or better than the xbox one gpu. And are you seriously using overpriced phones for an argument? The switch was going to release in 2016 with a 2015 chip that was high end. My expectations are the same for the switch 2: a 2022 release using a high end 2021 mobile gpu and proportional advances in ram + cpu.
Even in 5 years that won't be possible without having less than 1 hour of battery life or a handheld that weights a ton. Maybe by 2028 or so they could do so effectively, but with Moore's Law looming ahead, I have my doubts.
Also, Nintendo by far and large prefers using proven technology rather than the newest non-plus-ultra bleeding edge tech. In 3 years Nintendo will be using today's technology as far as computing hardware goes.
Switch can reach about 400 GFlops docked and 240 GFlops undocked. Even just the XBO S is over 3x in terms of raw performance compared to docked Switch, PS4 even almost 5x as powerful. Even the beefiest Smartphone chips can't reach that yet, Snapdragon 855+ stands at around 1000 GFlops - and if you game on those something that fully uses the power, either their battery is sucked empty in short notice or the chips are downclocked to save battery, at cost of lowered performance.
Finally, despite the rather weak performance compared to the consoles, the main gripe players had was not performance, but battery life. Hence why Nintendo used the new chip from NVidia not to enhance performance, but battery life.
In short, if by 2024 a successor to the Switch will come out (I don't expect one earlier unless Switch sales start to tank like those of the Wii) and will still be a hybrid console like the Switch, it will probably be much closer to XBO S performance and not come anywhere near XBO X.
The switch already proves you wrong because nintendo went for the best they could get while breaking even or having a small profit per unit at $299. It used a 2015 gpu with a release scheduled for 2016.
FLOPS =/= PERFORMANCE. If you're going to use just flops, you should first make an "exchange rate" of up to 2:1 because nvidea gpus tend to perform similarly to amd gpus with a lot more flops. In your language, it's like those 400 gflops on switch are equal to 700-800 when compared to the other amd gpus. Tegra volta already has like 1.3 tflops. Several years later and with a 7/8nm shrink, it should be very easy for nvidea to deliver a 3-3.2 tflop mobile gpu in 2021. That would already match or be close to the raw performance of xb1x gpu.
That's like saying in 2013 that a $299 mobile hardware in 2016 would barely surpass an x360 but the switch is here to prove that wrong. The ps4 and x1 are 2013 consoles using 2012 tech. We're talking about a 9 year technological gap that actually favors mobile tech (it's obviously gonna stay bellow non mobile but the gap is smaller). The switch 2 will be obviously superior than those consoles in every aspect and the only thing that might be close is portable mode gpu power. There's nothing surprising about that, it's just how technology works.