How fast will local models feel on the AMD RX 9070 XT 16GB?

Local LLM speed on the AMD RX 9070 XT 16GB

The AMD RX 9070 XT 16GB has 16 GB of memory and 644.6 GB/s of memory bandwidth, which is what mostly decides generation speed. Below is the expected speed for each model at the best quantization that fits.

Model	Quantization	Memory	Generation	First token
Qwen 3.6/3.8 27B	Q4_K_M	Partial offload	14 tok/s	1.4 s
GLM-5.3 Flash	UD-IQ1_S	Doesn't fit	Won't run	—
GPT-OSS 20B	MXFP4	Fits	122 tok/s	0.3 s
Gemma 4 26B A4B	Q4_K_M	Partial offload	92 tok/s	1.2 s
Qwen 3.5/3.6 35B A3B	Q4_K_M	Partial offload	77 tok/s	1.2 s
Ornith 1.5 35B A3B	Q4_K_M	Partial offload	80 tok/s	1.2 s
DeepSeek V4 Flash	UD-IQ1_S	Doesn't fit	Won't run	—
GPT-OSS 120B	MXFP4	Doesn't fit	Won't run	—
Gemma 4 31B	Q4_K_M	Partial offload	10 tok/s	1.4 s
Llama 3.1 8B	Q4_K_M	Fits	82 tok/s	0.3 s
Qwen 3.5 9B	Q4_K_M	Fits	65 tok/s	0.3 s
DeepSeek R1 Distill 14B	Q4_K_M	Fits	45 tok/s	0.3 s
Ornith 1.5 9B	Q4_K_M	Fits	64 tok/s	0.3 s
Muse Glimmer 30B	Q4_K_M	Partial offload	8.4 tok/s	1.4 s
Qwen3 30B A3B	Q4_K_M	Partial offload	93 tok/s	1.2 s

Other 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.