Can I Run Gemma 4 12B (Unified) on AMD Radeon RX 7900 XTX?

Autor: Jakub Rusinowski · Ostatnia aktualizacja: 11 września 2026

Yes. Gemma 4 12B (Unified) needs 7.2 GB at Q4_K_M and the AMD Radeon RX 7900 XTX has 24 GB, leaving about 16.8 GB of headroom, at roughly 62 tok/s (estimated) with room for up to 64K of context.

See what else this hardware can run →

The numbers

Gemma 4 12B (Unified) on the AMD Radeon RX 7900 XTX: VRAM by quantization

Assumes a 4K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 24 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Context costs VRAM too. At Q4_K_M on the AMD Radeon RX 7900 XTX: 8K 9.4 GB · 32K 13.3 GB · 125K 28.5 GB ✗. Past 125K it no longer fits 24 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.

What to do next

Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.

No compatible GPU? Gemma 4 12B (Unified) on 16 GB of system RAM, CPU only: runs, but it is tight.

Running Gemma 4 12B (Unified) on this card:

Other Gemma 4 sizes on the AMD Radeon RX 7900 XTX

• Gemma 4 31B — runs (18.7 GB)
• Gemma 4 26B-A4B — runs (15.7 GB)
• Gemma 4 E4B — runs (4.5 GB)
• Gemma 4 E2B — runs (2.9 GB)

Gemma 4 12B (Unified) on nearby hardware

• AMD Radeon RX 7900 XT (20 GB) — runs
• NVIDIA GeForce RTX 5090 (32 GB) — runs

All Gemma 4 sizes on the AMD Radeon RX 7900 XTX | Gemma 4 12B (Unified) model page | AMD Radeon RX 7900 XTX GPU page | Check your hardware