The story of the Uncharted 4 AVX2 fix is a tale of a modern PC port clashing with aging hardware, followed by a swift response from the developer to save the experience for thousands of players. The Barrier: A Technical Gatekeeper
When the Uncharted: Legacy of Thieves Collection launched on PC in October 2022, many players with older but still capable CPUs—such as the Intel Sandy Bridge or Ivy Bridge generations—found they couldn't even launch the game. The culprit was a requirement for AVX2 (Advanced Vector Extensions 2), a set of CPU instructions that older processors simply didn't have.
Players on Steam Community and Reddit expressed frustration, as these CPUs often exceeded the raw power of the original PlayStation 4 hardware but were barred by this "technicality". The Workarounds: Community Innovation
Before an official fix arrived, the community scrambled for solutions:
Emulators: Some attempted to use the Intel Software Development Emulator (SDE) to trick the game into running, though this often resulted in unplayable performance and frequent crashes. uncharted 4 avx2 fix
Unofficial Patches: Modders and community members on forums like cs.rin.ru explored ways to bypass the instruction check, though these were often unstable. The Resolution: The Official Patch
Recognizing the issue, developer Iron Galaxy Studios released an official update on November 16, 2022.
Fallback Executables: The patch introduced a clever fix: if an older CPU is detected, the game automatically switches to a fallback executable (like u4-l.exe) that doesn't require AVX2.
No Performance Loss for Others: This method allowed users with modern hardware to continue benefiting from AVX2 optimizations without impacting their performance. The story of the Uncharted 4 AVX2 fix
Reports on DSOGaming confirmed that this "Patch 3" effectively removed the AVX2 restriction, finally allowing "potato" PC owners to join Nathan Drake on his final adventure.
When Uncharted 4: A Thief’s End and The Lost Legacy finally made their long-awaited debut on PC as part of the Legacy of Thieves Collection, millions of gamers celebrated. Naughty Dog’s cinematic masterpiece was no longer a PlayStation exclusive.
However, the celebration was short-lived for a significant portion of the PC community. Upon launch, many players were greeted not by Nathan Drake’s witty banter, but by a crash to desktop or an immediate error message. The culprit? A missing instruction set known as AVX2.
If you own an older CPU and have been wrestling with the "Uncharted 4 AVX2 fix," you have come to the right place. This article explains what AVX2 is, why Naughty Dog used it, and—most importantly—how to actually get the game running on unsupported hardware. Uncharted 4 on PC: The Complete Guide to
Intel itself provides a tool called Intel SDE (Software Development Emulator). It was designed for developers to test new instruction sets on old hardware. We can hijack this tool to run Uncharted 4.
WARNING: This method incurs a performance penalty of roughly 30–40%. You will not get 60 FPS on a legacy CPU. 30–40 FPS is the target.
Step-by-Step Guide:
sde-external-9.33.0-2024-01-07-win.tar.xz).C:\IntelSDE.Uncharted4.exe file. This is usually in:
Steam\steamapps\common\Uncharted Legacy of Thieves Collection\@echo off
C:\IntelSDE\sde.exe -avx2 -- "C:\Program Files (x86)\Steam\steamapps\common\Uncharted Legacy of Thieves Collection\Uncharted4.exe"
Launch_Uncharted.bat in your game folder..bat file and select “Run as administrator”.Expected Result: The Intel SDE will intercept AVX2 instructions, translate them into multiple AVX or SSE instructions, and feed them to your CPU. The game will launch.
Troubleshooting: If you get a “DLL not found” error, ensure you have the latest Visual C++ Redistributables (All-in-One pack from TechPowerUp).