Can the Radeon RX 7900 XTX run Gemma 4 26B A4B?
Yes. Gemma 4 26B A4B fits the Radeon RX 7900 XTX's 24 GB at Q4_K_M (about 16.8 GB needed), running at an estimated 162 tok/s. There's room for up to Q5_K_M if you want higher quality.
Every quantization
Gemma 4 26B A4B (26.5B, 4B active) on 24 GB
| Quant | Weights | Needs | Fit | Est. speed |
|---|---|---|---|---|
| Q4_K_M | 15 GB | 16.8 GB | Fits | ~162 tok/s |
| Q5_K_M | 19 GB | 20.8 GB | Tight | ~128 tok/s |
| Q8_0 | 28 GB | 29.8 GB | Too big | - |
| FP16 | 53 GB | 54.8 GB | Too big | - |
Estimates. Needs = weights + 1.8 GB for KV cache and runtime at modest context. Speed is single-stream decode scaled from the Radeon RX 7900 XTX's 960 GB/s bandwidth (Estimated from memory bandwidth (llama.cpp decode)). Long contexts need more memory and run slower.
Run it
Copy, paste, go
llama-server -hf google/gemma-4-26B-A4B-it-qat-q4_0-gguf -ngl 99Ollama pulls a Q4 build by default. Pick a larger quant only if the table above says it fits. Full Gemma 4 26B A4B details →
Compare
Same model, other hardware - and other models on this card
Gemma 4 26B A4B on other hardware
- RTX 5090~303 tok/s
- RTX 5090 D~302 tok/s
- RTX 6000D~265 tok/s
- RTX 4090~184 tok/s
- RTX 3090~161 tok/s
- MacBook Pro 16" M4 Max~92 tok/s
- Arc Pro B60~77 tok/s
- DGX Spark (GB10)~46 tok/s
Also runs on the Radeon RX 7900 XTX
- GLM-4.7-Flash~212 tok/s
- Qwen3-30B-A3B-Instruct-2507~207 tok/s
- Qwen3.6 27B~34 tok/s
- Qwen3.8 27B~34 tok/s
- gpt-oss-20b~183 tok/s
- Qwen2.5-Coder-14B-Instruct~61 tok/s
- Qwen3 14B~69 tok/s
- Phi-4~65 tok/s
Frequently asked
Quick answers
Can the AMD Radeon RX 7900 XTX run Gemma 4 26B A4B?
Yes. Gemma 4 26B A4B fits the Radeon RX 7900 XTX's 24 GB at Q4_K_M (about 16.8 GB needed), running at an estimated 162 tok/s. There's room for up to Q5_K_M if you want higher quality.
How much VRAM does Gemma 4 26B A4B need?
About 15 GB of weights at Q4_K_M, 28 GB at Q8_0 and 53 GB at FP16. Add roughly 1.8 GB for the KV cache and runtime at modest context lengths.
How fast is Gemma 4 26B A4B on the Radeon RX 7900 XTX?
Roughly 162 tokens per second at Q4_K_M (single user, llama.cpp-style decode). This is an estimate from the Radeon RX 7900 XTX's 960 GB/s memory bandwidth; as a mixture-of-experts model only about 4B parameters are read per token, which is why it is faster than its size suggests.