Next generation means a generational leap in power, but how much is a generational leap? a 1.24x increase in bandwidth certainly isn't, using the same CPU with a mere clock boost isn't, using the same on board 8GB GDDR5 isn't, so the only thing the Neo has going for it to make it remotely close to a generational leap is the boost in GPU power, but even that is lacking with a mere 2.3x more power than the PS4 GPU. When combined CPU + Total Ram + Bandwidth + GPU power, Neo is not even close to a generational leap.
Note, I'm not dissing the Neo at all, just explaining why it cannot be a generational leap, and that's ok because it's not supposed to be, that isn't what Sony is intending.
Now let's examine Scorpio as an upgrade to Xbox One.
GPU = 4.6x more powerful
Bandwidth = 4.7x more
CPU = A true generation leap if they use Zen, more than 10x
Total on board ram = 12GB
If the above rumored is true, then Scorpio will be more of a generational leap than the Dreamcast was over PSX/N64.
You're only looking at the GPU though, what about total system ram, bandwidth, CPU power? If Scorpio goes with Zen, we're looking at more than 10x the CPU power, if 12GB of ram, that's a big boost compared to the same pool, and 320GB/s bandwidth is 72% over the PS4 and 47% over Neo. Neo is a mere 17% increase in bandwidth over PS4.