This method uses a tool originally designed for emulating AVX instructions on older CPUs in other games (like Detroit: Become Human ). A clever developer created a proxy DLL that intercepts the AVX2 calls and translates them into multiple AVX (or even SSE) calls.
For users on older hardware, the fix transformed the game from "unlaunchable" to "very playable".
However, take this error as a friendly nudge from the technology gods. AVX2 has been standard for nearly a decade. If you are reading this because your PC won’t launch Uncharted 4, start saving for a modern budget CPU. The jump from a Sandy Bridge i7 to a modern Ryzen or Intel 12th-gen chip will feel like going from a rowboat to a speedboat.
: Users with unsupported CPUs sometimes use the Intel Software Development Emulator (SDE) to mimic newer instructions. uncharted 4 avx2 fix
Check for game updates or patches that may resolve the AVX2 error:
Q: Does this work for The Lost Legacy? Yes. Both games share the same engine and binary structure.
After extensive testing on an (no AVX2) and an AMD FX-8350 (no AVX2), here is the honest verdict: This method uses a tool originally designed for
If none of the above solutions work, consider:
: This approach ensures that users with newer CPUs still benefit from the performance optimizations of AVX2, while older CPU owners can finally play the game without being "crippled" by the lack of those specific instructions. Performance Review: Is It Playable?
Q: Can I play online multiplayer (Survival mode)? Technically yes, but the latency from emulation will make it unplayable. Stick to the campaign. However, take this error as a friendly nudge
If you own any of the following, you will see the error without a fix:
AVX2, introduced by Intel with the Haswell microarchitecture in 2013 and later adopted by AMD with the Excavator cores and Ryzen, extends the original AVX (released with Sandy Bridge in 2011). AVX2 enables 256-bit SIMD (Single Instruction, Multiple Data) operations on integers, alongside gather instructions, fused multiply-add (FMA), and more efficient vectorization. For a game like Uncharted 4 , which was originally developed for the PlayStation 4’s Jaguar-based APU (which lacks AVX2), the decision to enforce AVX2 on PC seemed paradoxical. Yet the porting process via Naughty Dog’s internal engine, heavily optimized for Sony’s later SDKs, likely used compiler flags (e.g., /arch:AVX2 in MSVC or -mavx2 in Clang) that assumed the presence of AVX2 for certain shader compilation pipelines, physics calculations, or DRM wrapper routines. Alternatively, the game’s anti-tamper or the PlayStation PC SDK wrapper might have contained AVX2 instructions inadvertently or deliberately to block emulation or older hardware.