Uncharted 4 Avx2 Fix New • Official & Proven
The latest official "fix" for the AVX2 requirement Uncharted: Legacy of Thieves Collection (which includes Uncharted 4 ) was released by developer Iron Galaxy in Patch 3 (v1.3) on November 16, 2022. Official Solution (Recommended) If you are running the game through Epic Games Store , simply update your game to the latest version. Automatic Fallback:
The game now detects if your CPU lacks AVX2 support and automatically switches to a fallback executable ( Uncharted 4 The Lost Legacy
This allows older CPUs (like Intel Sandy Bridge or Ivy Bridge) to launch the game without third-party mods. Legacy/Unofficial "Fixes"
Before the official patch, community members developed "fixes" using tools like Intel SDE (Software Development Emulator) or custom hooks to bypass the CPU check. Performance Warning:
Unofficial fixes that "emulate" AVX2 instructions often result in severe performance drops or lag because older CPUs are forced to process complex instructions they weren't built for. Stability: uncharted 4 avx2 fix new
Use the official Patch 3 instead, as it was specifically designed to provide a stable non-AVX2 code path. Key Game Info (Remastered Collection) Included Games Uncharted 4: A Thief's End Uncharted: The Lost Legacy Official Patch Version 1.3 (Patch 3) - Adds non-AVX2 support Minimum OS Windows 10/11 for older CPUs or a walkthrough for a specific chapter?
Here’s a helpful guide on the “Uncharted 4 AVX2 fix” — a common issue for players with older CPUs that don’t support AVX2 instructions.
The Uncharted 4 game engine utilizes AVX2 instructions to optimize performance on compatible processors. This allows for smoother gameplay, more detailed graphics, and a more immersive gaming experience. However, if your processor does not support AVX2, the game will not run, leading to frustration for those trying to play it on older hardware.
Navigate to your Uncharted 4 installation folder (e.g., Steam\steamapps\common\Uncharted 4). The latest official "fix" for the AVX2 requirement
If a hardware upgrade isn't feasible, consider playing Uncharted 4 on a different platform. Uncharted: The Nathan Drake Collection and Uncharted 4: A Thief’s End are available on PlayStation consoles.
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.
Before diving into the fix, it is vital to understand the enemy.
AVX2 (Advanced Vector Extensions 2) is an instruction set introduced by Intel with the Haswell architecture (2013) and later by AMD with the Excavator architecture (2015). These instructions allow the CPU to perform mathematical operations on large vectors (multiple pieces of data) in a single clock cycle. Game engines love AVX2 for physics calculations, environmental decompression, and shader compilation. The Uncharted 4 game engine utilizes AVX2 instructions
Uncharted 4, being a port of a PlayStation 4 game, was compiled with AVX2 support enabled by default. The PS4’s CPU (Jaguar) does not actually support AVX2, but the PC port’s compiler (likely Clang or MSVC) assumed a modern x86-64 CPU.
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 Invalid Opcode Exception (#UD). The game crashes before the main menu.
The AVX2 requirement for Uncharted 4 might present a hurdle for players with older CPUs, but understanding your hardware and exploring upgrade options or alternative platforms can help resolve the issue. The AVX2 instruction set represents a leap forward in processor capabilities, offering enhanced performance for demanding applications like Uncharted 4.
There are no guaranteed software workarounds to bypass the AVX2 requirement. The game fundamentally requires AVX2 instructions to run.
