RTX 4090 vs RX 7900 XTX for Local LLMs: CUDA vs ROCm
The RTX 4090 wins for serious local LLM inference thanks to superior CUDA ecosystem support and faster throughput; the RX 7900 XTX wins on price-per-GB for budget-conscious builders willing to navigate ROCm. Your choice hinges almost entirely on ecosystem tolerance and how much you value plug-and-play setup.
