Radeon R9700 with 32 GB VRAM is relatively affordable for the amount of RAM and with llama.cpp it runs fast enough for most things. These are workstation cards with blower fans and they are LOUD. Otherwise if you have the money to burn get a 5090 for speeeed and relatively low noise, especially if you limit power usage.

I have a pair of Radeon AI PRO R9700 with 32Gb, and so far they have been a pleasure to use. Drivers work out-of-the-box, and they are completely quiet when unused. They are capped at 300W power, so even at 100% utilization they are not too loud.

I was thinking about adding after-market liquid cooling for them, but they're fine without it.