Intel Arc B580 · Gemma 4 12B · Q4_K_M
Yes. A Intel Arc B580 runs Gemma 4 12B at Q4_K_M with room left at 8,192 tokens, roughly 33–51 tokens per second.
| Piece | Value | Note |
|---|---|---|
| Weights | 6.63 GiB | gemma-4-12b-it-Q4_K_M.gguf |
| KV cache | 0.44 GiB | 8,192 tokens |
| Engine overhead | 0.50 GiB | Flat 0.5 GiB allowance |
| 5% headroom | 0.38 GiB | On the sum above |
| Total | 7.95 GiB | Fits |
| Fast memory | 12.0 GiB | 12 GB VRAM |
| Speed | 33–51 tok/s | Dense bandwidth range |
ollama run gemma4:12b
Intel Arc B580 · Gemma 4 12B ·GGUF file · Methodology
FAQ
How was this fit calculated?
Weights 6.63 GiB, KV cache 0.44 GiB at 8,192 tokens, engine overhead 0.50 GiB, then 5% headroom, for 7.95 GiB. Fast memory available is 12.0 GiB.
What if I change the quant or the context?
This page is Q4_K_M at 8,192 tokens. A smaller quant or a shorter context lowers the total. The homepage calculator changes both without a new page.
Can I trust the tokens per second?
The range 33–51 tok/s is a bandwidth roofline, 55% to 80% efficient. This dense model reads the whole weight file each token. Measure your own box before you buy around it.
What do I type?
ollama run gemma4:12b
Is Intel Arc B580 assumed to have extra RAM?
Yes. Discrete GPU pages assume 32 GB of system RAM. Offload uses whatever remains after 8 GB for Windows, and it is limited by the slower of DDR5-5600 and the PCIe link.