Unlike older software plugins that struggled with high resolutions, the GPU Core 2.0.0 leverages and GLSL shaders to drastically improve graphics while maintaining performance.
The is an internal video plugin integrated directly into ePSXe version 2.0.0 and later. Unlike older versions of the emulator that required manual downloads of external plugins like Pete’s OpenGL, this "core" plugin is included in the standard emulator package and provides significant graphical enhancements. Download Information