Uncharted 4 Avx2 Fix ((link)) < CERTIFIED >
, sitting in his dimly lit bedroom, the scene was a stuttering mess of frozen pixels and a "Fatal Error" . His old PC, powered by a trusty but aging i7-2600K, was gasping for air, unable to understand the game’s .
Which are you playing on? (Steam, Epic Games, or another launcher)
Before the official patch, the only way for many users to run the game was to use Intel's . This tool intercepts CPU instructions and translates AVX2 operations into something older processors can understand.
Because on paper, the Legacy of Thieves Collection lists an Intel i7-4770 (Haswell) as the minimum requirement. That chip supports AVX2. However, many gamers with perfectly capable CPUs—like the Intel i7-2600K (Sandy Bridge), i7-3770K (Ivy Bridge), or AMD Phenom II —found the game refused to launch. These chips are fast enough to run the game, but lack the specific instruction set. uncharted 4 avx2 fix
Within Steam, right-click Uncharted > Properties > Installed Files > "Verify integrity of game files" 1.2.1 .
Even without the AVX2 restriction, your CPU may still be a bottleneck, potentially causing frame drops in heavy action sequences.
The story has a happy ending for most users. On , Iron Galaxy and Naughty Dog released patch 1.3.20812 , which officially removed the mandatory AVX2 restriction. , sitting in his dimly lit bedroom, the
Lower the and Physics settings in the graphics menu.
AVX2 is an extension to the x86 instruction set architecture for microprocessors from Intel and AMD. Introduced in 2013 with Intel's Haswell architecture and in 2015 with AMD's Carrizo architecture, AVX2 expands vector processing capabilities, allowing the CPU to execute more data commands per clock cycle.
Using or WEMOD (a popular trainer hub), you can freeze the process right as the logo appears and inject a simple assembly jump. (Steam, Epic Games, or another launcher) Before the
Uncharted 4 ’s PC port (developed by Iron Galaxy Studios) hard-codes AVX2 requirements, crashing on startup with an illegal instruction exception on pre-Haswell/Excavator CPUs. This paper examines the community-developed “AVX2 fix,” a binary patch that replaces AVX2 instructions with functionally equivalent sequences using AVX or SSE. We address the following research questions:
SDE is very slow (20–30 FPS max). Only for low-resolution testing, not full playthroughs.
AVX2 is an extension to the x86 instruction set architecture for microprocessors from Intel and AMD. It allows CPUs to execute commands and process data much faster, which game developers use to optimize heavy calculations like physics, AI, and graphics rendering.
The launch of Uncharted 4 on PC was marred by this issue, with players flooding forums to report the "unsupported CPU" error. The immediate reaction was one of bewilderment, especially as other demanding titles ran perfectly fine on their older hardware.

