To verify the patch is installed, you can check in-game or in your game files that the version number is .
On , Iron Galaxy Studios released the third major patch for Uncharted: Legacy of Thieves Collection on PC, bringing the game to version 1.3.20812 . In the patch notes, a crucial line read: "Added support for older CPUs without AVX2 feature support" . This is the most elegant solution because it requires no third-party tools or complex configuration.
On a test rig (i7-2600K @ 4.2GHz / GTX 1070), the new fix achieves at 1080p with the above settings. The infamous "Madagascar car chase" scene, which previously crashed on load, now runs at a stable 35 FPS.
The proxy DLL intercepts the game’s call to DirectX 11. Before initializing the GPU, it hooks the CPU’s instruction decoder. When the game asks for VPMASKMOVD (an AVX2 instruction), the DLL translates it into a loop of MOVDQU (SSE2) operations.
[ Launch Game ] │ ┌───────────────┴───────────────┐ Does CPU support AVX2? Does CPU lack AVX2? │ │ ▼ ▼ [ Standard AVX2 Pipeline ] [ Fallback Executable ] • High performance math • Alternative instruction sets • Optimizations active • u4-l.exe / tll-l.exe active
AVX2 requirement is an official patch released by developer Iron Galaxy in November 2022. This update officially removed the hard restriction that prevented older CPUs without AVX2 support—such as Intel 3rd Gen (Ivy Bridge) or earlier—from launching the game. Official Patch Details
The initial requirement entirely blocked systems running on several hardware architectures:
The most effective, though not perfect, solution is using the . This tool emulates newer CPU instructions on older processors. While it causes significant performance loss, it does allow the game to launch. Steps to Apply the Fix:
Uncharted 4 AVX2 fix is a fan-made community patch (often distributed as a modified
: Ensure your game is fully updated through the client to automatically receive this fix. Manual Community Fixes
Save the file as Launch_Uncharted4.bat (ensure you change "Save as type" to "All Files").
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Example Target: C:\SDE\sde.exe -hsw -- "C:\Games\Uncharted\u4.exe" .