How fast will Gemma 4 26B A4B feel on the AMD Ryzen AI Max+ 395 128GB (Strix Halo)?

Gemma 4 26B A4B on the AMD Ryzen AI Max+ 395 128GB (Strix Halo)

Gemma 4 26B A4B is a 25.81B-parameter mixture-of-experts model (3.8B active per token). At Q4_K_M it needs about 17.7 GB of memory. The AMD Ryzen AI Max+ 395 128GB (Strix Halo) has 119 GB usable, so it fits entirely in memory. Expect about 49 tokens/sec (43–55), with the first token after 0.3 s for a short prompt. This estimate is based on community benchmarks of this exact setup.

Speed by quantization

QuantizationFile sizeMemoryGenerationFirst tokenSource
Q4_K_M16.9 GBFits49 tok/s0.3 sMeasured
Q8_026.9 GBFits43 tok/s0.3 sMeasured
FP1650.5 GBFits22 tok/s0.3 sMeasured

Gemma 4 26B A4B on other hardware

Other models on the AMD Ryzen AI Max+ 395 128GB (Strix Halo)

All models on the AMD Ryzen AI Max+ 395 128GB (Strix Halo) · Gemma 4 26B A4B on all hardware

Estimates for a short prompt on a single device. Measured numbers come from community benchmarks (r/LocalLLaMA, localscore.ai and more); others are derived from similar setups or projected from specs. Open source on GitHub.