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GPU comparison

NVIDIA RTX 4070 (12GB) vs AMD RX 9070 XT (16GB) for local LLMs

How the two stack up for running open-source LLMs locally — memory, bandwidth, price, and how many of the 64 tracked models each one can run.

NVIDIA RTX 4070 (12GB)AMD RX 9070 XT (16GB)
Memory12.0 GB16.0 GB
Bandwidth504 GB/s645 GB/s
Price (approx)$549$699
LLMs it runs27 of 6445 of 64
Best model it runsDevstral Small 2 24B · 35–53 tok/sQwen3.8 27B · 38–58 tok/s

The AMD RX 9070 XT (16GB) runs 18 more of the tracked models (45 vs 27), thanks to its 16.0 GB of memory. The AMD RX 9070 XT (16GB) has more memory bandwidth (645 GB/s), so it generates tokens faster at the same model and quant.

What the NVIDIA RTX 4070 (12GB) runs →What the AMD RX 9070 XT (16GB) runs →Open the calculator →