Amd is claiming a 1.5x - 1.7x uplift over the 6950. I think you need to check your mathematics here, friend, because you're spreading some questionable information. Let's take the OC'd 4080 and compare it to the 6950.

15,062 ÷ 10644 ~ 1.415. This means the overclocked 4080, which may cost more than the $1200 msrp, is only 41.5% faster than the 6950. If amd isnt bullshitting us, then the overclocked 4080 will be slower than the 7900xtx.