Unless you get 3070Ti at a great price vs 3070 or 3060Ti, IMO 3070Ti is not worth. 8GB VRAM does hurt a bit but mainly it is not even 10% faster than 3070.
Generally 3070Ti is 60-65k & I have seen RX 6800XT for those prices, better get the latter.
My recommendation for most is to stick to 3060Ti or maybe 3070 if you get a good deal (like at 10% higher cost than 3060Ti). It is enough for 100+fps in games like R6 or Apex at 2K. If you expect SP AAA games to cross 100fps at 1440p, stick to 6800XT or 3080.