Uncharted 4 Avx2 Fix |top| — Top

This tool can emulate AVX2 instructions on older hardware.

Antivirus software hates DLL injection. You will likely need to add an exception to Windows Defender. Furthermore, online features (if any remain) may flag this as a modified executable, though Uncharted 4 is single-player.

Today, the solution is simple: The AVX2 requirement is no longer a barrier to entry. The game intelligently adapts to your hardware, letting modern systems run at peak performance with AVX2 enabled while providing a stable, playable experience for those with older, AVX2-lacking processors. The drama served as a reminder that for developers, a simple compiler flag can have unforeseen consequences, and for players, sometimes the best "fix" is a little patience.

When Uncharted 4 attempts to execute an AVX2 command on a CPU that does not support it, the processor encounters an invalid instruction. Because the operating system cannot resolve this command, it forces the application to terminate instantly. This results in a crash-to-desktop (CTD) error, often accompanied by an error log citing EXCEPTION_ILLEGAL_INSTRUCTION . How the Uncharted 4 AVX2 Fix Works uncharted 4 avx2 fix

Note: i7-3770 without fix cannot run at all. The “native” column is for Ryzen 5 reference, not the same CPU.

When attempting to launch the game, users on older hardware often encounter an immediate crash to desktop (CTD) or a "Something went wrong" crash report. This is because the game engine specifically requires the CPU to support AVX2 instructions for high-performance processing, which older processors lack.

Uncharted 4: A Thief's End and Uncharted: The Lost Legacy are available on PC as part of the UNCHARTED: Legacy of Thieves Collection. This tool can emulate AVX2 instructions on older hardware

Open Task Manager, right-click Uncharted 4, and set priority to "High." Troubleshooting Common Issues

Microsoft is currently testing for Windows on ARM (Prism emulator). However, they have shown no inclination to bring this to x86 Windows for legacy Intel chips.

AVX2 extends AVX (2011) by adding:

However, if you have a (a 10-core server CPU that lacks AVX2 but has massive bandwidth) paired with a modern GPU, this fix is a lifesaver. You can run the game at 4K/30 FPS smoothly.

This approach forced the game to run through a software layer that translated AVX2 instructions into something older CPUs could understand. The process was technically complex and resulted in a massive performance penalty, often dropping to just 15-30 FPS, making the game barely playable.

: Newer CPUs continue to use AVX2 for better performance, while older CPUs can now at least run the game, albeit with potentially lower frame rates. Troubleshooting Persistent Issues Furthermore, online features (if any remain) may flag