How fast will Nemotron 3.5 Lightning 30B A3B feel on the AMD Ryzen AI Max+ 395 128GB (Strix Halo)?

Nemotron 3.5 Lightning 30B A3B on the AMD Ryzen AI Max+ 395 128GB (Strix Halo)

Nemotron 3.5 Lightning 30B A3B is a 31.58B-parameter mixture-of-experts model (3B active per token). At Q4_K_M it needs about 26.0 GB of memory. The AMD Ryzen AI Max+ 395 128GB (Strix Halo) has 119 GB usable, so it fits entirely in memory. Expect about 64 tokens/sec (56–72), 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_M25.3 GBFits64 tok/s0.3 sMeasured
Q8_035.0 GBFits51 tok/s0.3 sMeasured
FP1665.8 GBFits26 tok/s0.3 sDerived

Nemotron 3.5 Lightning 30B A3B 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) · Nemotron 3.5 Lightning 30B A3B 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.