{
  "id": "m1-ultra",
  "name": "M1 Ultra",
  "url": "https://2benches.lost.plus/chips/m1-ultra",
  "architecture": {
    "id": "g1",
    "name": "A14 · M1",
    "cores": "Firestorm / Icestorm"
  },
  "tier": "ultra",
  "status": "released",
  "release": "2022-03-18",
  "processNm": 5,
  "dataCheckedAt": "2026-09-21",
  "notes": [
    "Scores are medians of sourced results; low/high is the observed source range.",
    "Configuration scores use only results attributed to that configuration.",
    "similar lists the nearest measured configurations of other chips by Geekbench 7 CPU and Metal; ratio > 1 means faster.",
    "estimate values are forecasts, never measurements."
  ],
  "benchmarks": {
    "gb7-cpu": {
      "label": "Geekbench 7 · Multi-core",
      "unit": "score",
      "measured": {
        "median": 23418,
        "low": 23418,
        "high": 23418,
        "count": 1
      },
      "estimate": null
    },
    "gb7-metal": {
      "label": "Geekbench 7 · Metal GPU",
      "unit": "score",
      "measured": {
        "median": 150168,
        "low": 150168,
        "high": 150168,
        "count": 1
      },
      "estimate": null
    },
    "ai-gpu-single": {
      "label": "Geekbench AI · GPU · Single",
      "unit": "score",
      "measured": null,
      "estimate": null
    },
    "ai-gpu-half": {
      "label": "Geekbench AI · GPU · Half",
      "unit": "score",
      "measured": null,
      "estimate": null
    },
    "ai-gpu-quantized": {
      "label": "Geekbench AI · GPU · Quantized",
      "unit": "score",
      "measured": null,
      "estimate": null
    },
    "ai-neural-engine-single": {
      "label": "Geekbench AI · Neural Engine · Single",
      "unit": "score",
      "measured": null,
      "estimate": null
    },
    "ai-neural-engine-half": {
      "label": "Geekbench AI · Neural Engine · Half",
      "unit": "score",
      "measured": null,
      "estimate": null
    },
    "ai-neural-engine-quantized": {
      "label": "Geekbench AI · Neural Engine · Quantized",
      "unit": "score",
      "measured": null,
      "estimate": null
    },
    "llama-F16-pp": {
      "label": "Prefill 512 · F16",
      "unit": "tok/s",
      "measured": {
        "median": 1022.35,
        "low": 875.81,
        "high": 1168.89,
        "count": 2
      },
      "estimate": null
    },
    "llama-F16-tg": {
      "label": "Decode 128 · F16",
      "unit": "tok/s",
      "measured": {
        "median": 35.47,
        "low": 33.92,
        "high": 37.01,
        "count": 2
      },
      "estimate": null
    },
    "llama-Q8_0-pp": {
      "label": "Prefill 512 · Q8_0",
      "unit": "tok/s",
      "measured": {
        "median": 913.2,
        "low": 783.45,
        "high": 1042.95,
        "count": 2
      },
      "estimate": null
    },
    "llama-Q8_0-tg": {
      "label": "Decode 128 · Q8_0",
      "unit": "tok/s",
      "measured": {
        "median": 57.78,
        "low": 55.69,
        "high": 59.87,
        "count": 2
      },
      "estimate": null
    },
    "llama-Q4_0-pp": {
      "label": "Prefill 512 · Q4_0",
      "unit": "tok/s",
      "measured": {
        "median": 901.14,
        "low": 772.24,
        "high": 1030.04,
        "count": 2
      },
      "estimate": null
    },
    "llama-Q4_0-tg": {
      "label": "Decode 128 · Q4_0",
      "unit": "tok/s",
      "measured": {
        "median": 79.33,
        "low": 74.93,
        "high": 83.73,
        "count": 2
      },
      "estimate": null
    }
  },
  "variants": [
    {
      "id": "m1-ultra-20c-48g",
      "cpu": 20,
      "cores": {
        "super": 0,
        "performance": 16,
        "efficiency": 4
      },
      "gpu": 48,
      "bandwidthGBs": 800,
      "bin": "binned",
      "scores": {
        "llama-F16-pp": {
          "median": 875.81,
          "low": 875.81,
          "high": 875.81,
          "count": 1
        },
        "llama-F16-tg": {
          "median": 33.92,
          "low": 33.92,
          "high": 33.92,
          "count": 1
        },
        "llama-Q8_0-pp": {
          "median": 783.45,
          "low": 783.45,
          "high": 783.45,
          "count": 1
        },
        "llama-Q8_0-tg": {
          "median": 55.69,
          "low": 55.69,
          "high": 55.69,
          "count": 1
        },
        "llama-Q4_0-pp": {
          "median": 772.24,
          "low": 772.24,
          "high": 772.24,
          "count": 1
        },
        "llama-Q4_0-tg": {
          "median": 74.93,
          "low": 74.93,
          "high": 74.93,
          "count": 1
        }
      },
      "estimates": {},
      "similar": []
    },
    {
      "id": "m1-ultra-20c-64g",
      "cpu": 20,
      "cores": {
        "super": 0,
        "performance": 16,
        "efficiency": 4
      },
      "gpu": 64,
      "bandwidthGBs": 800,
      "bin": "full",
      "scores": {
        "llama-F16-pp": {
          "median": 1168.89,
          "low": 1168.89,
          "high": 1168.89,
          "count": 1
        },
        "llama-F16-tg": {
          "median": 37.01,
          "low": 37.01,
          "high": 37.01,
          "count": 1
        },
        "llama-Q8_0-pp": {
          "median": 1042.95,
          "low": 1042.95,
          "high": 1042.95,
          "count": 1
        },
        "llama-Q8_0-tg": {
          "median": 59.87,
          "low": 59.87,
          "high": 59.87,
          "count": 1
        },
        "llama-Q4_0-pp": {
          "median": 1030.04,
          "low": 1030.04,
          "high": 1030.04,
          "count": 1
        },
        "llama-Q4_0-tg": {
          "median": 83.73,
          "low": 83.73,
          "high": 83.73,
          "count": 1
        }
      },
      "estimates": {},
      "similar": []
    }
  ],
  "devices": [
    {
      "id": "mac-studio-m1-ultra",
      "name": "Mac Studio",
      "variant": null,
      "scores": {
        "gb7-cpu": 23418,
        "gb7-metal": 150168
      }
    }
  ]
}