This method tricks the Uncharted 4 executable into thinking your CPU supports AVX2. It does this by translating AVX2 instructions into AVX or SSE instructions on-the-fly. There is a slight performance penalty (5-10%), but the game becomes fully playable.
Disclaimer: This fix is for legal copies of Uncharted: Legacy of Thieves Collection purchased from Steam or the Epic Games Store. Do not use this with cracked software; it is intended for legitimate owners troubleshooting hardware limitations.
The PC port of Uncharted 4: A Thief's End utilizes the AVX2 (Advanced Vector Extensions 2) instruction set, specifically SIMD (Single Instruction, Multiple Data) operations, for high-performance mathematical calculations. This creates a hard dependency on Intel Haswell (4th Gen) or later, and AMD Ryzen (Zen) or later CPUs. Users attempting to run the title on legacy hardware (e.g., Intel Ivy Bridge or AMD FX series) encounter an immediate EXCEPTION_ILLEGAL_INSTRUCTION (0xC000001D) crash. This paper analyzes the "AVX2 Fix" methodology, which typically involves binary patching or instruction emulation to bypass this hardware requirement.
Published by: Tech Revivalist Reading Time: 6 minutes
When Uncharted 4: A Thief’s End and The Lost Legacy were bundled into the Legacy of Thieves Collection and released on PC in late 2022, fans of Nathan Drake rejoiced. Finally, the cinematic masterpiece that pushed the PS4 to its limits was available on desktops and laptops with unlocked frame rates and ultra-wide support. uncharted+4+avx2+fix+free
But for a significant portion of PC gamers, the joy turned to immediate frustration. Double-clicking the executable resulted in... nothing. Or, worse, a cryptic error message: "Your CPU does not support AVX2 instructions."
If you landed here searching for the "Uncharted 4 AVX2 fix free" , you are likely running a venerable Intel Sandy Bridge, Ivy Bridge, or early AMD Bulldozer processor. You have two choices: buy a new motherboard and CPU, or apply the free fix detailed below.
Today, we are going to show you exactly how to bypass the AVX2 requirement for Uncharted 4—legally, safely, and completely free.
Before we jump into the fix, let’s understand the enemy. Uncharted 4: AVX2 Fixes and Freeing Memory —
AVX2 (Advanced Vector Extensions 2) is a set of CPU instructions introduced by Intel with the Haswell architecture (4th Gen Core i-series, ~2013) and by AMD with the Ryzen series (2017) .
These instructions allow the processor to perform mathematical operations on large blocks of data (vectors) in a single clock cycle. Game engines use AVX2 for physics calculations, texture decompression, and audio reverb.
The problem? CPUs older than Haswell (like the popular Intel i7-2600, i7-3770, or i5-2500K) do not have AVX2. They have AVX (original) or SSE (Streaming SIMD Extensions).
Sony Interactive Entertainment and Iron Galaxy (the porting studio) compiled the game’s executable with mandatory AVX2 flags. Without hardware support, the game crashes before the logo appears. Yes, but with a catch
The "fix" widely distributed in modding communities is not a simple configuration change but a binary modification. The core objective of this fix is to handle the absence of AVX2 support without terminating the program.
There are two primary methods used in these patches:
Since the game is programmed to look for these specific instructions, there is no simple "On/Off" switch in the settings menu. However, the modding community has created workarounds.
The Solution: Emulation/Patching The fix involves using a community-created patch or an "AVX emulator." Essentially, this software intercepts the game's requests for AVX2 instructions and translates them into standard instructions your older CPU can understand.
Does it work?
