There
isn't a good comparison, simply because Nintendo is the only significant device that we could compare it to not based on AMD hardware. It's also the only hybrid. The sheer number of qualifications at any comparison is massive.
Not that long ago I saw a well liked YouTube comment by someone who said he didn't believe it would be Series S levels of power (a four teraflops machine), closer to One X (a six teraflops machine). How do you succinctly explain to a person who thinks that way what level of performance to expect?
If you had to pick between current gen, last gen, and the Steam Deck, which device do you pick as the closest point of comparison? What's the least number of caveats you have to write after? How do you give someone an impression that won't be knocked down by pedants measuring by a totally different yard stick?
I don't have a good answer, and if your answer is multiple paragraphs long, you also don't have a good answer
That's because there isn't a good answer, just least bad.
I think the Steam Deck is a bad comparison, simply because so few gamers have encountered it, and don't have a set of visuals in their head associated with it, unlike a console with headlining exclusives that sold 10s of millions of units. I also think that most gamers intuitively understand scaling down to fit in your hand, instead of scaling up to get stretched on a 50 inch television.
I think few people understand RT, and most people experience it either as a "high quality" or a "low quality" lighting setting. I'd rather not explain to a layman the subtle differences between an upscaled low resolution RTGI solution over higher native res, pixely upscaled baked lighting plus SDF reflections
And most people immediately take the comparisons and see them as a floor, not a ceiling. I'm not trying to communicate what absolute killer ports would look like, but the "Forever Entertainment level" ports.
The PS4 remains the best option I've got, until Nintendo does the reveal and ends my need to explain
anything