Uncharted 4 Avx2 Fix
Use the command line to target your SDE directory, then launch the Uncharted executable through the emulator using the following syntax: sde.exe -hsw -- "C:\Path\To\Your\Uncharted4\u4.exe" Keep the command prompt open while the game runs. Performance Expectations & Troubleshooting
Iron Galaxy and Naughty Dog optimized Uncharted: Legacy of Thieves Collection to heavily rely on AVX2 instructions. If you attempt to launch the game on a CPU that does not natively support AVX2, the game engine attempts to execute a command your hardware cannot understand. The operating system immediately halts the program to prevent system corruption, resulting in an instant crash to desktop (CTD).
If the game crashes, try adding -mix or -hsw flags to the command line. uncharted 4 avx2 fix
Before downloading third-party files, ensure your game is fully updated through Steam or the Epic Games Store.
CPUs without native AVX2 support are likely to handle the game's high-demand tasks less efficiently. This can lead to lower FPS and stuttering during busy scenes. Use the command line to target your SDE
Alternative Method: Intel Software Development Emulator (SDE)
If your CPU lacks AVX2 support, the game attempts to execute an instruction your hardware literally does not understand. Instead of lagging, the operating system instantly terminates the application, resulting in a crash to desktop (CTD) with no error message. Affected CPU Generations The operating system immediately halts the program to
This means you don't need to do anything manually. The game just works—provided you have the latest patch installed. Newer CPU users continue to get the full AVX2 benefit, while older CPU owners can finally play without performance compromises.
Not sure if your processor is affected by this issue? Here are three easy ways to check:
Ensure the game is installed on a , as older CPUs coupled with traditional Hard Drives (HDDs) will cause severe asset-streaming freezes. Conclusion
A common cause of crashes is outdated drivers. Download the latest drivers for Nvidia or AMD.