# SiliconBench: Speed, Memory, and Fidelity for LLM Serving on Unified-Memory Desktops > Source: > Published: 2026-09-21 18:00:00+00:00 Concurrent local LLM serving on unified-memory desktops must preserve memory headroom and output fidelity, which speed-only rankings overlook. We introduce SiliconBench, which evaluates nine Apple Silicon serving engines through three lenses: speed, memory, and fidelity. We evaluate chat and agent s