Call of Pripyat 64-bit Engine
https://www.moddb.com/games/stalker-call-of-pripyat/downloads/call-of-pripyat-64-bit-engine

Added Support for 8 Cores and 16 Threads
32GB RAM Usage MAX
Engine will now utilise 99% of your GPU
MSAA AND ALPHATEST WORKS!

With this Engine you can use 8K Textures with no problem, If you have good GPU!