Can I Run Gemma 4 31B (free) on a AMD RX 7900 XT?
Runs at Q4_K_M — good quality with reasonable headroom.
1 quant fit your 20.0GB
| Quant | Min VRAM | Recommended | File size | Headroom |
|---|---|---|---|---|
| Q4_K_MBEST | 19.8 GB | 21.3 GB | 18.8 GB | +0.2 GB |
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Top-ranked open-source models that fit in 20.0GB.
FAQ
Can the AMD RX 7900 XT run Gemma 4 31B (free)?
Yes. The AMD RX 7900 XT's 20.0GB of VRAM is enough to run Gemma 4 31B (free) at Q4_K_M quantization (19.8GB required).
What's the best quantization to use?
Q4_K_M is the highest-precision quantization that fits in your 20.0GB. It uses about 19.8GB of memory and 21.3GB recommended for comfortable inference.
What if I need more headroom for context length?
KV cache memory grows with context length. The numbers above assume a baseline 2K-4K context. For long-context use (32K+), add another 2-6GB depending on the model architecture.