Same seed doesn't mean same pixels: RTX 5090 renders differ at tensor level
Efficient_Pirate_533 · reddit · 2026-11-15
A hands-on measurement shows "same seed, same image" isn't strictly true: two renders on RTX 5090 GPUs can look identical to the eye yet differ at the tensor level with a non-zero delta of 0.000183, which the author amplified into a visual thermal difference map. The attached image shows the two same-seed renders side by side along with the amplified difference heatmap—a noteworthy caveat for image workflows that rely on fixed seeds for reproducibility.
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