VRAM must hold weights AND KV cache. What's left after weights is your real context window. For a 10K-line project (~100-150K tokens): - 1 card: 32-100K usable, file-by-file workflow - 2 cards: 80-180K usable, whole-project-in-one-shot workflow - This Opus session: 1M tokens (neither setup comes close) Comparison table vs Claude Opus 1M session for perspective. Keep Pro for the hard stuff, use local for the daily 80%. https://claude.ai/code/session_01PtYTPherSJaxDEVPgF6Nxu