JGJosh Greeninjoshgreen.hashnode.dev·Jun 6 · 8 min readWhy DDR5 Bandwidth Kills Dual-LLM Inference on APUs (Benchmarks Inside)Did you know that a 35-billion-parameter model can generate tokens at the same compute cost as a 4B model? That single fact made me abandon a multi-model agent architecture I'd spent a weekend buildin10