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GPU comparison

NVIDIA RTX 4080 (16GB) vs AMD RX 7900 XTX (24GB) for local LLMs

How the two stack up for running open-source LLMs locally — memory, bandwidth, price, and how many of the 22 tracked models each one can run.

NVIDIA RTX 4080 (16GB)AMD RX 7900 XTX (24GB)
Memory16.0 GB24.0 GB
Bandwidth717 GB/s960 GB/s
Price (approx)$1,099$949
LLMs it runs12 of 2216 of 22
Best model it runsGemma 4 26B-A4B (MoE) · 107–161 tok/sGemma 4 31B · 32–48 tok/s

The AMD RX 7900 XTX (24GB) runs 4 more of the tracked models (16 vs 12), thanks to its 24.0 GB of memory. The AMD RX 7900 XTX (24GB) has more memory bandwidth (960 GB/s), so it generates tokens faster at the same model and quant.

What the NVIDIA RTX 4080 (16GB) runs →What the AMD RX 7900 XTX (24GB) runs →Open the calculator →