322 megapixels rendered locally on an RTX 5080 in 105.58 seconds, 65°C max

Some-Passenger3885 · reddit · 2026-09-06

Using a consumer RTX 5080 with 16GB VRAM on a local Windows machine, the author generated a 20,736×15,552 (322 megapixel) image in 105.58 seconds via a heavily optimized custom ComfyUI workflow.

Key metrics: 922 MB uncompressed Master TIFF output, peak GPU temperature just 65°C (custom fan curves, optimized VRAM staging), written directly to a Lexar NM990 PCIe 5.0 SSD at 14,500 MB/s on an Asus ROG Maximus Z890 Extreme with an Intel Core Ultra 9 285K. The output was clean with flawless anatomical symmetry, suggesting optimized consumer hardware can hit industrial medium-format scanning resolutions in under two minutes.

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