If you're using Linux (probably almost no one here) then AMD is the GPU to buy. If you're on Windows (almost everyone here) there is a good chance that you'll need to do less troubleshooting when using an Nvidia card, they seem to work more smoothly with Windows than AMD cards. So if you're okay with troubleshooting a little you can save a decent amount of money with 6000 series cards. I would wait for driver updates before buying the 7000 series though.
>>420663083
The RX 6900 XT looks actually pretty decent in this comparison when you consider the price.