Comparing (gaming class) video cards online

Hey guys & gals, so where is your favorite places online to compare 2-3 video cards?

I need to compare my Nvidia GTX-1070 to RTX-3070 .

However, I also want to compare them to AMD RX-6600 and RX-6700 .

With the chip-shortage, sky-high GPU prices, and what seems to be some quality-control issues on higher-end SKUs ... I'm thinking of switching back to the red-team (AMD) after all these years.

I want a good dedicated GPU for my new build (and do plan to also get a new 30-32in 4K @60hz IPS-panel monitor) , but I'm not really a heavy-gamer like before. I just need something all-around capable (games included) but needs to be reliable.