RK3588 is Rockchip’s highest-performance processor to date so yeah likely just youthful enthusiasm.
I guess much will go on how well Rockchip do with a high end arm base incorporating relatively new arm architectures.
But nope apart from a figment of imagination prob has been looking at some of the latest Mediatek & Snapdragon chips
If thing go well something around that mark or an Arm X2 might be on the guesstimate horizon but its a strange market as the likes of Intel & especially AMD are providing performance at ever lower watts that is starting to converge with Arm from different directions.
There are some quite bargain priced AMD Athlon 300U (15 watt) if you do a trawl of aliexpress with 8gb/120gb for approx $220 and if I had the cash would be buying one just to benchmark and evaluate.
The RDNA 2-based integrated graphics in Ryzen 6000 mobile CPUs are pretty damn powerful and currently out of Rock style pricing but its only a few years at current rate where they will be older budget chips as the Athlon 300U is now.
Its all interesting and my enthused question is are we hitting a process nm barrier with next gen being like TMSC N4 (4nm-class) apparently quantum tunnelling is a thing at that level and below where electrons mysteriously pass through without hitting the transistor substrate.