Ryzen AI Max+ 395 128GB vs RTX 5090 32GB for Local LLMs
The RTX 5090 32GB has about 733% more memory bandwidth (1,792 vs 215 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 733% faster on the RTX 5090 32GB. The Ryzen AI Max+ 395 128GB fits more of the catalog at Q4/8K — 51 vs 39 of 69 models (96 vs 32 GB VRAM). Largest model that fits the Ryzen AI Max+ 395 128GB but not the RTX 5090 32GB: DeepSeek-V4-Flash (158.1B). MSRP is $2,000 for the Ryzen AI Max+ 395 128GB vs $1,999 for the RTX 5090 32GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. In the Q4/8K head-to-head below (53 shared models), the RTX 5090 32GB posts the higher tok/s in 50 rows vs 3. Methodology.