CPU microcode and Windows power plan
: If an older CPU is detected, the game automatically switches to a fallback executable ( u4-l.exe for Uncharted 4 or tll-l.exe for The Lost Legacy). uncharted 4 avx2 fix
first launched on PC in October 2022, it required , a CPU instruction set introduced with Intel's Haswell (4th Gen) and AMD's Ryzen processors. This meant popular but aging CPUs—such as the Intel Core i7-2600K or i7-3770K—could not even open the game, leading to crashes at startup. The requirement was particularly controversial because: CPU microcode and Windows power plan : If
). This allows older chips like the Intel Sandy Bridge (i7-2600K) or Ivy Bridge (i7-3770K) to run the game. Performance Impact uncharted 4 avx2 fix