The M3 Ultra is the contrarian pick. Slow first-token-time, monstrous context, zero thermal drama. Resilience is its game.
heart · tier S · Apple
Apple M3 Ultra Mac Studio
Unified Memory Titan
Up to 512 GB unified memory. Lower peak TFLOPs than a 5090; far larger context windows. Best Heart for 100B+ models you're not in a hurry to run.
Stats
- power
- 72
- ±3
- precision
- 84
- ±3
- speed
- 58
- ±8
- resilience
- 98
- ±1
Synergies
- + qwen3-local-72b →
Unified memory absorbs long-context without swap
resilience +10
Unlocks
laser · emp