Uncharted 4 Avx2 Fix New Jun 2026

Feedback: Please report crash logs and CPU model + OS version if you still see issues. Thanks to everyone who tested and provided logs — massive help!

The initial "Unsupported CPU" error that plagued the PC release of Uncharted: Legacy of Thieves Collection is a solved problem. The official patch from November 2022 remains the gold standard, offering a simple, effective, and high-performance solution for the majority of users. If you are using an older game build, the community's hex edit or learning patch provides an equally viable path to adventure.

A: No, Uncharted 4 requires AVX2 instructions to run.

The definitive fix for the AVX2 limitation arrived via . Instead of removing AVX2 code paths entirely (which would degrade the performance of modern chips), the developers built a smart fallback execution system.

If you tell me your specific , I can confirm if it supports the official fallback or if you need additional workarounds. AVX2 fixed on old CPUs :: UNCHARTED - Steam Community uncharted 4 avx2 fix new

If you are struggling with a processor without AVX2 support, applying the Intel SDE emulator is still the primary, albeit slow, method to bring Nathan Drake to your screen.

If you are the owner of an older but still capable CPU (like Intel’s Sandy Bridge, Ivy Bridge, or first-gen Ryzen without AVX2), you have been locked out of Nathan Drake’s final adventure. Until now.

If the DLL method crashes, use the new discovered in December 2024. Right-click Uncharted 4 in Steam → Properties → Launch Options. Enter: -noavx2 -force_sse4

: Systems that support AVX2 continue to use the standard high-performance path without any drops in framerate. Feedback: Please report crash logs and CPU model

Even with the AVX2 requirement removed, the game remains demanding. To play at on "Medium" settings, you generally need:

Append -hsw -- followed by the exact path to your game executable.

A: As of the last update, there has been no official announcement from the developers about a patch to remove this requirement.

[Game Launch] │ ├──► CPU supports AVX2? ──► Yes ──► Launches 'u4.exe' (Maximum Performance) │ └──► CPU lacks AVX2? ──► No ──► Automatically switches to fallback 'u4-l.exe' The official patch from November 2022 remains the

Consequently, if you try to run the game on a CPU lacking AVX2 (e.g., Intel Core i7-2600K, i7-3770K, i5-2500K, or AMD Ryzen 1000 series with specific microcode issues), the CPU encounters an . The game crashes before the main menu.

3rd Generation (Ivy Bridge) and older (e.g., i7-3770, i7-2600). Intel Pentium/Celeron: Older budget models.

: Simply update your game to the latest version via Steam or the Epic Games Store . Alternative Community Fix: Intel SDE Emulator

The most straightforward solution is to upgrade your CPU to one that supports AVX2. This ensures compatibility with Uncharted 4 and future-proofing for other games and applications.