Codex beats average programmers: G-buffer shrunk from 24 to 16 bytes/pixel
ducha_aiki · x · 2026-09-12
SebAaltonen shares a hands-on test of AI coding: Codex initially produced a bloated G-buffer layout using 16F data at 24 bytes/pixel. After optimization it came down to 16 bytes/pixel (12-byte color + 4-byte depth), with a final layout of RGBA8SNORM, RGB10A2, RG11B10F and D32 — running in a 1080p window, his PC fans no longer spin up.
While he regularly complains about AI code quality, he notes AI now writes faster code than the average programmer — human baselines are low: open any app and watch it eat gigabytes of RAM in Task Manager.
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