The was officially resolved by Naughty Dog and Iron Galaxy in Patch 3 (v1.3) , released in November 2022. This update added support for older CPUs (like the Intel Core i7-3770 or early AMD chips) that lack the AVX2 instruction set, which previously caused the game to crash on startup.
Ensure your game is updated to at least version 1.3. Steam should download this automatically. Verify Files: uncharted 4 avx2 fix new
Intel SDE is an official tool by Intel that intercepts CPU instructions and emulates them. This is often more stable than a hacked executable but is slightly more complex to set up. The was officially resolved by Naughty Dog and
or a specific launcher into the game directory. However, since these are unofficial files, there is always a security risk Steam should download this automatically
Here’s a short, useful story framed as a troubleshooting guide for someone searching for an — told from the perspective of a gamer who solved it.
: For best performance regardless of your CPU, you must let the game finish "Building Shaders" at the main menu (bottom right corner). Skipping this often leads to micro-stuttering and high CPU temperatures. Verdict for Legacy Users Our Third Patch Is Live! :: UNCHARTED - Steam Community
In the field, add the following after the file path: -hsw -- "C:\Path\To\Game\u4.exe" . Note: This emulates a Haswell-era CPU. Performance will likely be much lower (potentially 7–15 FPS). Compatibility Settings : Right-click the game's main executable ( u4.exe ). Select Properties > Compatibility .
