(Advanced Vector Extensions 2) is a set of CPU instructions introduced by Intel with the Haswell architecture in 2013 and by AMD with the Excavator architecture in 2015 (and widely adopted in Ryzen). These instructions allow the CPU to perform mathematical operations on large chunks of data simultaneously (SIMD—Single Instruction, Multiple Data).
When the game tries to call an AVX2 instruction and the CPU doesn't understand it, the application fails silently (or with a generic "Unhandled Exception" error). Here is the harsh reality: There is no official patch from Naughty Dog or Iron Galaxy (the porting studio) to remove the AVX2 requirement. uncharted 4 avx2 fix
Performance hits of 40-60% are common. Uncharted 4 may become a slideshow on a Core i7-2600K. (Advanced Vector Extensions 2) is a set of
The tool intercepts the game's AVX2 calls, translates them into multiple smaller instructions your CPU can understand, and passes them back. Here is the harsh reality: There is no
This means the "fix" lies entirely in the hands of the community and third-party tools. Depending on your technical comfort level, there are three ways to bypass the AVX2 lockout. Warning: These are unofficial workarounds. Proceed at your own risk. 1. The SDE Emulation (The "Safe" Software Fix) Intel provides a tool called the Intel Software Development Emulator (SDE) . It is designed for developers to test new instruction sets on old hardware, but we can use it to emulate AVX2 on non-AVX2 CPUs.
However, the celebration was short-lived for a significant portion of the PC community. Upon launch, many players were greeted not by Nathan Drake’s witty banter, but by a crash to desktop or an immediate error message. The culprit? A missing instruction set known as .
| 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. |