{
  "date": "2026-10-09",
  "environment": {
    "gpu": "NVIDIA GeForce RTX 3090",
    "torch": "2.13.0+cu130",
    "cuda": "13.0",
    "physical_gpu_gib": 23.99951171875,
    "normal_allocator_budget_gib": 23.99951171875,
    "quantized_allocator_budget_gib": 12,
    "methodology": "RTX3090 24GB; normal has full allocator, INT8/W4A8 allocator limited to 12GiB. Each precision gets a 2-step 832x1280 warmup before both full 100-step comparisons. Same prompt/seed/size/CFG3/empty negative prompt within each case. One run per condition. Times include final GPU offload, exclude initial CPU model construction. Whole-board samples include other apps at 250ms. Not a physical 16GB GPU test. W4A8 native BF16 fallback rejected."
  },
  "board_sample_interval_ms": 250,
  "records": [
    {
      "case": "anime-portrait",
      "request": {
        "task": "generate",
        "precision": "normal",
        "prompt": "A vertical full-body Japanese anime illustration of a girl with long dark blue hair and blue eyes, wearing a modest white blouse, a navy cardigan and a pleated skirt, standing on a quiet spring footpath under cherry blossoms. Clean confident line art, expressive anime eyes, flat cel shading, a softly painted anime background, detailed but readable composition, crisp illustration. No text.",
        "seed": 424243,
        "width": 832,
        "height": 1280,
        "steps": 100,
        "cfg": 3.0,
        "negative_prompt": ""
      },
      "output": "examples/portrait/normal-anime-portrait.png",
      "output_sha256": "9cb74f519918ea518f3a6b8dc6afbf65584476a53be0edbd2e1f7e382a236ea3",
      "board_sample_max_mib": 23582.0,
      "task": "generate",
      "precision": "normal",
      "size": [
        832,
        1280
      ],
      "seconds": 262.342845399864,
      "wall_seconds": 262.34577179979533,
      "peak_allocated_mib": 19563.14599609375,
      "peak_reserved_mib": 19964.0,
      "pixel_mean": 159.02052307128906,
      "pixel_std": 69.44867706298828,
      "allocator_budget_gib": 23.99951171875
    },
    {
      "case": "anime-portrait",
      "request": {
        "task": "generate",
        "precision": "int8",
        "prompt": "A vertical full-body Japanese anime illustration of a girl with long dark blue hair and blue eyes, wearing a modest white blouse, a navy cardigan and a pleated skirt, standing on a quiet spring footpath under cherry blossoms. Clean confident line art, expressive anime eyes, flat cel shading, a softly painted anime background, detailed but readable composition, crisp illustration. No text.",
        "seed": 424243,
        "width": 832,
        "height": 1280,
        "steps": 100,
        "cfg": 3.0,
        "negative_prompt": ""
      },
      "output": "examples/portrait/int8-anime-portrait.png",
      "output_sha256": "48f57edd4a44dec7eb1415e4dfba9f6ce9b7b345117ec41ff2552b62c6ac0144",
      "board_sample_max_mib": 15292.0,
      "task": "generate",
      "precision": "int8",
      "size": [
        832,
        1280
      ],
      "seconds": 281.20204719994217,
      "wall_seconds": 281.20522450003773,
      "peak_allocated_mib": 11148.01318359375,
      "peak_reserved_mib": 11748.0,
      "pixel_mean": 159.47984313964844,
      "pixel_std": 69.89448547363281,
      "allocator_budget_gib": 12
    },
    {
      "case": "anime-portrait",
      "request": {
        "task": "generate",
        "precision": "w4a8",
        "prompt": "A vertical full-body Japanese anime illustration of a girl with long dark blue hair and blue eyes, wearing a modest white blouse, a navy cardigan and a pleated skirt, standing on a quiet spring footpath under cherry blossoms. Clean confident line art, expressive anime eyes, flat cel shading, a softly painted anime background, detailed but readable composition, crisp illustration. No text.",
        "seed": 424243,
        "width": 832,
        "height": 1280,
        "steps": 100,
        "cfg": 3.0,
        "negative_prompt": ""
      },
      "output": "examples/portrait/w4a8-anime-portrait.png",
      "output_sha256": "b70a9da9f585c4287c613da41765298e0918c30e2389ecd53bb6bf29ab4632c6",
      "board_sample_max_mib": 14076.0,
      "task": "generate",
      "precision": "w4a8",
      "size": [
        832,
        1280
      ],
      "seconds": 245.62736619985662,
      "wall_seconds": 245.63117799977772,
      "peak_allocated_mib": 9946.51806640625,
      "peak_reserved_mib": 10922.0,
      "pixel_mean": 157.20343017578125,
      "pixel_std": 71.71510314941406,
      "allocator_budget_gib": 12
    },
    {
      "case": "anime-liveaction",
      "request": {
        "task": "generate",
        "precision": "normal",
        "prompt": "A vertical full-body mixed-media image: a clearly hand-drawn 2D Japanese anime girl with long dark blue hair and blue eyes, wearing a white blouse, navy cardigan and pleated skirt, holding a transparent umbrella on a real rainy Tokyo street at dusk. The girl remains clean anime line art and flat cel shading. The street, shopfronts, wet pavement, reflections, light and depth of field look like a realistic live-action photograph. Natural compositing, consistent perspective and contact shadows, detailed photographic background. No text.",
        "seed": 20261010,
        "width": 832,
        "height": 1280,
        "steps": 100,
        "cfg": 3.0,
        "negative_prompt": ""
      },
      "output": "examples/portrait/normal-anime-liveaction.png",
      "output_sha256": "5a60730410b1d2964f0484312cc067842dd87dd6fd0209494e5db70a0e0aa8ea",
      "board_sample_max_mib": 23623.0,
      "task": "generate",
      "precision": "normal",
      "size": [
        832,
        1280
      ],
      "seconds": 267.57457130006514,
      "wall_seconds": 267.5776149998419,
      "peak_allocated_mib": 19563.14599609375,
      "peak_reserved_mib": 19964.0,
      "pixel_mean": 104.04700469970703,
      "pixel_std": 81.7166748046875,
      "allocator_budget_gib": 23.99951171875
    },
    {
      "case": "anime-liveaction",
      "request": {
        "task": "generate",
        "precision": "int8",
        "prompt": "A vertical full-body mixed-media image: a clearly hand-drawn 2D Japanese anime girl with long dark blue hair and blue eyes, wearing a white blouse, navy cardigan and pleated skirt, holding a transparent umbrella on a real rainy Tokyo street at dusk. The girl remains clean anime line art and flat cel shading. The street, shopfronts, wet pavement, reflections, light and depth of field look like a realistic live-action photograph. Natural compositing, consistent perspective and contact shadows, detailed photographic background. No text.",
        "seed": 20261010,
        "width": 832,
        "height": 1280,
        "steps": 100,
        "cfg": 3.0,
        "negative_prompt": ""
      },
      "output": "examples/portrait/int8-anime-liveaction.png",
      "output_sha256": "6ab1a3b62734b29688daceef75dbf7fdf988e09e1de3dde039b29ee99031a78a",
      "board_sample_max_mib": 15054.0,
      "task": "generate",
      "precision": "int8",
      "size": [
        832,
        1280
      ],
      "seconds": 306.5078990999609,
      "wall_seconds": 306.5109856999479,
      "peak_allocated_mib": 11148.01318359375,
      "peak_reserved_mib": 11748.0,
      "pixel_mean": 104.24275207519531,
      "pixel_std": 81.9132308959961,
      "allocator_budget_gib": 12
    },
    {
      "case": "anime-liveaction",
      "request": {
        "task": "generate",
        "precision": "w4a8",
        "prompt": "A vertical full-body mixed-media image: a clearly hand-drawn 2D Japanese anime girl with long dark blue hair and blue eyes, wearing a white blouse, navy cardigan and pleated skirt, holding a transparent umbrella on a real rainy Tokyo street at dusk. The girl remains clean anime line art and flat cel shading. The street, shopfronts, wet pavement, reflections, light and depth of field look like a realistic live-action photograph. Natural compositing, consistent perspective and contact shadows, detailed photographic background. No text.",
        "seed": 20261010,
        "width": 832,
        "height": 1280,
        "steps": 100,
        "cfg": 3.0,
        "negative_prompt": ""
      },
      "output": "examples/portrait/w4a8-anime-liveaction.png",
      "output_sha256": "03016759154d2690e78a5e606f9612277f4e64a09e5a40e0fe6985653741816e",
      "board_sample_max_mib": 14191.0,
      "task": "generate",
      "precision": "w4a8",
      "size": [
        832,
        1280
      ],
      "seconds": 244.12433310016058,
      "wall_seconds": 244.12753049982712,
      "peak_allocated_mib": 9946.51806640625,
      "peak_reserved_mib": 10922.0,
      "pixel_mean": 102.0595932006836,
      "pixel_std": 81.17957305908203,
      "allocator_budget_gib": 12
    }
  ],
  "comparisons": [
    {
      "case": "anime-portrait",
      "image": "examples/anime-portrait.jpg",
      "seed": 424243,
      "size": [
        832,
        1280
      ]
    },
    {
      "case": "anime-liveaction",
      "image": "examples/anime-liveaction.jpg",
      "seed": 20261010,
      "size": [
        832,
        1280
      ]
    }
  ],
  "note": "Generated images are model outputs, not factual photographs. Same conditions per case; normal full 24GB allocator, INT8/W4A8 12GiB cap. Whole-board sampled memory includes other applications and can miss short spikes. No physical 16GB card tested. Visual review is recorded separately."
}