If you're looking forward to use some LLM AI chatbot (e.g. ollama), you might prefer nvidia. I have been using my card without problems. If your only usecase is videogames and movies, then probably AMD is okay. Something similar might happen on regards to transcoding (serving movies to many devices), you might want to check which brand offers the best (some nvidia cards have hacks to enable features that are otherwise off because they segment market with that). In any case, depending on your usecase, you might prefer look into models actually, and not only the brand... on top of it, prices are fluctuating a lot. Perhaps you find a great card, for a great price, but with some compromise on the desired functionality. I've been there, ideally you want something to tackle all problems (incl. future desires of functionality and so on...)