

Not 100% sure about the chassis and compatibility with the rest of your rig so hopefully someone follows up on me, but in general I would try getting the AMD 9070 XT if you can find it near its real price ($600). That might be a bit difficult since it just released, so I would wait until it starts being more available if you can.
If not that, I’d recommend the 4060 Ti (16GB). Note that there’s an 8GB version too, do NOT buy that one. Nvidia is generally better when it comes to running AI, but the new AMD gpus are pretty good too.
AMD’s compatibility has gotten better the past year, and ones that aren’t compatible usually have workarounds. But yeah, Nvidia is probably better if LLMs are important for you.
More like ~$800-900 unless you’re okay with buying used. The market is pretty darn bad, and it’s gotten SO much worse due to the tariff scare. Like I said, you’re better off waiting a few months if you can.