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  "observations": {
    "size": "In the sampled close-ups, the 256 render looks softer around the eyes, beard and skin texture. The 512 render shows finer-looking facial texture at this enlarged display size. Mouth shape, blinking and head position also differ between the independent runs, so those differences cannot be attributed to resolution alone. Neither sample establishes objectively better lip sync or identity accuracy.",
    "enhancer": "In the sampled close-ups, GFPGAN ON gives eyes and facial hair more defined edges and produces smoother-looking skin than OFF. The mouth and teeth also look different, but motion and expression differ between these independent renders. The sharper presentation is visible here; exact identity recovery and improved temporal stability were not measured."
  },
  "performance_notes": {
    "size": "With GFPGAN OFF, 256 took 27.88 s and 512 took 55.41 s: 512 was 1.99\u00d7 the elapsed time in these runs. The sampled whole-GPU peak rose from 4,799 MiB to 10,047 MiB. The final unenhanced videos are 256 \u00d7 256 and 512 \u00d7 512.",
    "enhancer": "At base size 512, OFF took 55.41 s and ON took 119.39 s: ON added 63.99 s, or 2.15\u00d7 the total elapsed time in this pair. The sampled whole-GPU peak rose from 10,047 MiB to 10,207 MiB. GFPGAN doubled final dimensions to 1024 \u00d7 1024; it did not change the base render setting."
  }
}