With 24 GB of VRAM, the RX 7900 XTX runs Granite 4.2 8B at Q4_K_M entirely on the GPU with an 8K context (about 7.3 GB needed). At Q8_0 it fits entirely.
Q4_K_M · 8K context
The model needs about 7.3 GB and fits in the 23.3 GB available, with 15.9 GB to spare.
~7.3 GB (6.9 GB–7.8 GB) needed · estimate
Fits entirely in VRAM · 15.9 GB left
EstimateData updated 40 days agoSource: Run LLM Locally engine, Hugging Face config.json + model card
What makes this estimate less reliable
| Granite 4.2 8B Q8_08K~11.2 GB · 53–79 tok/s estimate | Excellent |
|---|---|
| Granite 4.2 8B Q6_K8K~9.2 GB · 64–97 tok/s estimate | Excellent |
| Granite 4.2 8B Q5_K_M8K~8.2 GB · 71–108 tok/s estimate | Excellent |
| Granite 4.2 8B Q4_K_M8K~7.3 GB · 78–121 tok/s estimate | Excellent |
| Granite 4.2 8B IQ4_XS8K~6.9 GB · 82–129 tok/s estimate | Excellent |
| Granite 4.2 8B Q3_K_M8K~6.4 GB · 88–140 tok/s estimate | Excellent |
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24 GB GDDR6 · 960 GB/s · 355 W
ExcellentRuns Granite 4.2 8B Q4_K_M entirely in memory
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