It's really a great generational uplift over the 3080, but that's a moot point when it is priced completely out of the same tier. To put this in perspective the 3080 ($700) trounced the 2080 Ti ($1100) by about 15-20% and more when RT was factored in. The 3080 surpassed the previous generation's top-tier GPU and maintained its price point. The 4080 generationally is about the same, it surpasses the 3090 Ti, but it does so without any attempt at maintaining the price point, not even the MSRP of the 12GB 3080 at $899. There is nothing to be excited about here, if every new more powerful GPU is going to cost proportionally more money, then you might as well go for the 4090, why purchase a $1200 4080 when the 5080 is going to be about the same price as the 4090 with about the same performance?
It's no wonder so many are considering AMD's 7900 XTX, at the very least it represents a more sustainable pricing model. A 60-70% generational increase without a price increase at all (really a price decrease since the 6950 XT was $1100). And it will outperform the 4080 here in all but RT (though that is disappointing).