This Tiny AMD PC Just Ran a Massive 397B AI Model That Required a Server Room Full of GPUs a Year Ago
TechRadar, Friday, June 19th, 2026
A mini PC with AMD's Ryzen AI Max+ 395 and 128GB RAM ran a 397B-parameter AI model via real-time memory compression.
TechRadar reports that Shenzhen-based memory firm Longsys demonstrated a 397B-parameter AI model (a customized Qwen-derived Mixture-of-Experts model) running locally on a mini PC built around AMD's 16-core Ryzen AI Max+ 395 with 128GB of unified memory.
Even with INT4 quantization the model's estimated 200-250GB VRAM needs far exceed the roughly 96GB available to the GPU, so Longsys used a custom SPU and iSA configuration to compress data in real time.
The feat highlights how unified memory architecture and advanced compression now let tiny, low-cost PCs run models that a year ago demanded server rooms full of GPUs.