As of late 2024, . Naughty Dog’s official support page states: "Uncharted: Legacy of Thieves Collection requires a CPU that supports the AVX2 and SSE 4.2 instruction sets."
Since Naughty Dog has not officially patched out the AVX2 requirement for older hardware, the gaming community stepped in. Independent modders have developed a "wrapper" or "emulator" that intercepts AVX2 calls and translates them into instructions your older CPU can actually understand. How to Install the AVX2 Fix uncharted 4 avx2 fix
Before the official patch, players used the Intel SDE to emulate AVX2 instructions. While this allowed the game to open, it often resulted in extremely poor performance (single-digit FPS) because software emulation is much slower than hardware-level execution. As of late 2024,