Uncharted 4 Avx2 Fix -
Right-click the game in your library → Properties → Local Files → Verify integrity of game files. This ensures the update installed correctly.
: Download the latest Nvidia Drivers (v526.98 or higher) or AMD Software .
| CPU Generation | AVX2 Support? | Expected Experience | | :--- | :--- | :--- | | | No | Playable via SDE/Fix, but expect 30-40 FPS on Low/Medium. | | Intel 4th Gen (4xxx) & newer | Yes | Game works natively. No fix needed. | | AMD FX-Series (8350, 6300) | No | Extremely poor performance even with fix (architectural bottleneck). | | AMD Ryzen (1xxx, 2xxx, etc.) | Yes | Works natively. | | Old Xeons (E5-2670 v1/v2) | No | Great potential with the DLL fix. Xeons have the muscle, just lack the instructions. | uncharted 4 avx2 fix
: Move the downloaded fix files into your main game directory (where the .exe files are located).
Some community modders create "patches" or modified .exe files that replace the AVX2 instructions with SSE instructions that older CPUs understand. Right-click the game in your library → Properties
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.
For integer 256-bit operations, the fix splits into two 128-bit SSE operations, recombining with VINSERTF128 . Gather instructions are replaced with serial scalar loads—a significant performance hit. | CPU Generation | AVX2 Support
The most popular method involves using a modified version of Intel's Software Development Emulator (SDE) or community-made DLL replacements found on platforms like Nexus Mods or GitHub.
Nathan Drake stood on the edge of the cliff, staring at the Libertalia ruins—but for
: Unofficial "fixes" and scripts appeared on forums like Steam and Reddit shortly after launch to try and bypass the startup check. Technical Context: Why AVX2?