Uncharted 4 Avx2 Fix <iPhone LIMITED>
About three months after launch, a modder known as “Okee” on the CS.RIN.RU forums released a patched .exe that removed the AVX2 requirement entirely by hex-editing the compiler checks. This file has since been mirrored on GitHub and Nexus Mods.
Risks: This method does not emulate; it simply deletes the CPU check. The game may behave unpredictably (random physics glitches, audio popping) if it tries to use an AVX2 instruction that doesn’t exist. However, it offers native performance.
Step-by-Step Guide:
Note on Antivirus: Because this file modifies a game executable, Windows Defender or your antivirus will likely flag it as HackTool:Win32/Keygen. This is a false positive. Add an exclusion for your game folder before downloading.
This is the most common method used by the community. It involves using a tool created by Intel called the Software Development Emulator (SDE). This tool emulates the AVX2 instructions on older CPUs.
Warning: This method significantly reduces performance. You will likely experience stuttering and lower framerates, as your CPU is doing heavy translation work in the background.
How to do it:
sde.exe and the dll files associated with it (specifically sde-dyn.dll and others in the intel_sde subfolder depending on the version). Paste them into the Uncharted 4 game folder mentioned above.The game will now launch. It may take longer to load, but it should bypass the AVX2 crash.
If you are sitting on a vintage gaming rig—perhaps an overclocked i7-2600K or a salvaged Mac Pro with dual Xeons—you can play Uncharted 4 on PC. It is not a myth.
However, you must accept that you are running an unsupported workaround. Tweak the settings: turn Texture Filtering to Low, Shadows to Medium, and Reflections to Off. These settings disproportionately use AVX2 math.
Naughty Dog won't patch it. Your motherboard manufacturer won't add AVX2 via BIOS. So, grab the community DLL, add your antivirus exclusion, and prepare to finally sail away from that island prison on an old, unsupported CPU. uncharted 4 avx2 fix
Nathan Drake would approve of this hack.
Disclaimer: This article is for educational purposes. Modifying game files may violate the EULA of the Legacy of Thieves Collection. Always purchase the game legally before applying fixes.
In November 2022, the developers of UNCHARTED: Legacy of Thieves Collection
released an official update (Patch 1.3) specifically to address the AVX2 instruction set requirement
, which previously prevented players with older CPUs from launching the game. Detailed Feature: "Legacy CPU Fallback Support"
This feature allows the game to remain accessible to players with hardware that does not support the AVX2 instruction set, such as Intel Sandy Bridge (i7-2600K) or Ivy Bridge (i7-3770K) processors. Automated Hardware Detection
: Upon startup, the game's launcher scans the user's processor for AVX2 support. Fallback Executables
: If the system lacks AVX2, the game automatically redirects the launch to a specialized "Legacy" executable: Uncharted 4: A Thief's End Uncharted: The Lost Legacy Instruction Emulation/Rerouting
: These fallback executables use standard instruction sets or original AVX paths to perform the floating-point computations that were previously locked to AVX2. Preserved High-End Performance
: Users with modern CPUs (4th Gen Intel/AMD Ryzen and newer) continue to use the standard AVX2-enabled executable, ensuring they benefit from the faster instruction sets without any performance penalty from the legacy support. Impact and Limitations AVX2 fixed on old CPUs :: UNCHARTED - Steam Community About three months after launch, a modder known
The Uncharted: Legacy of Thieves Collection on PC (which includes Uncharted 4: A Thief's End) originally required CPUs to support the AVX2 instruction set, causing crashes or startup failures for users with older processors like the Intel Sandy Bridge or Ivy Bridge series. Official Fix
In November 2022, a patch was released (v1.3 or Patch 3) that added AVX2 support and improved compatibility for older CPUs. This update officially addressed the requirement, allowing the game to run on processors that lacked these specific instructions, though performance on such aged hardware may still be limited. Community Workarounds
Before the official patch, players used several methods to bypass the AVX2 check:
Intel SDE (Software Development Emulator): This tool can emulate the AVX2 instruction set on unsupported CPUs. Pros: Allows the game to launch.
Cons: Extremely poor performance (often 7–15 FPS) and frequent crashes.
Hex Editing: Some community members shared hex values to manually patch the executable, though this was primarily used for disabling visual effects like TAA and DoF rather than bypassing core CPU instructions. Current Status
If you are still experiencing issues, ensure your game is updated to the latest version via Steam or the Epic Games Store. If you are on an ARM-based Windows PC, the October 2025 Windows 11 update introduced Prism, which enables AVX and AVX2 emulation, further expanding compatibility for modern non-x86 hardware.
Are you currently seeing a specific error message or experiencing a crash to desktop when launching the game?
Nathan Drake stood on the edge of the cliff, staring at the Libertalia ruins—but for
, 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 AVX2 instruction set. Note on Antivirus: Because this file modifies a
The community forums were a battlefield. Half the users told him his "dinosaur hardware" belonged in a museum, while the other half shared cryptic links to unofficial fix patches. Leo wasn't ready to retire his rig. He spent hours scouring threads, downloading a specialized tool designed to emulate the missing instructions. "One more try, Nate," he whispered.
He launched the game using a modified executable—the legendary AVX2 fix. Suddenly, the screen didn't go black. The "Naughty Dog" logo appeared, smooth and steady. He watched as Nathan Drake finally moved, swinging across the jungle canopy at a playable frame rate. It wasn't perfect—the shaders took an eternity to compile—but the treasure of Henry Avery was finally within reach.
Leo leaned back, a small smirk on his face. He hadn't just saved Nathan Drake ; he had saved his own piece of history.
Before attempting workarounds, ensure your CPU actually supports AVX2.
If your hardware is below these specs, the official stance from the developers is that your system does not meet the minimum requirements. However, the community has developed workarounds.
All test platforms without AVX2 successfully launched and completed the first three chapters. Previously, the game crashed at startup with EXCEPTION_ILLEGAL_INSTRUCTION at address 0x1412f4c30. With the fix, no illegal instruction crashes occurred over 40+ hours of cumulative testing.
Check quickly:
Supported: Intel 4th gen (Haswell) and newer, AMD Ryzen and some late FX. Not supported: Intel Core 2 Duo, 1st–3rd gen Core (i7-9xx, i7-2xxx, i7-3xxx), AMD Phenom, Bulldozer (unless Excavator variant).
If you aren’t sure whether you need this guide, check your CPU:
CPUs that DO NOT need the fix:
CPUs that DO need the fix (Incompatible):
If you fall into the second category, keep reading.