RTX 5090, Mac Studio vie for agent supremacy

For massive agent concurrency, memory capacity is the ultimate bottleneck, making high-spec Mac Studios the superior choice for scaling local "swarms" over single-GPU setups. The RTX 5090's 32GB VRAM is a hard ceiling that will crash under the KV cache requirements of 40+ concurrent agents, even with small models. In contrast, the Mac Studio's support for up to 512GB of unified memory allows for massive batching and long-context windows that would require a $10k+ multi-GPU cluster to match on PC. While NVIDIA holds the edge in raw tokens-per-second and software stability via vLLM, Apple's MLX ecosystem has matured enough to handle complex agentic loops with lower power and noise. Scaling to 80 agents effectively mandates "cargo plane" memory architecture rather than "fighter jet" throughput, favoring the Mac Studio for business-critical reliability.