The internal GPU core introduced several modern features to improve the visual quality of PlayStation 1 games:
ePSXe GPU Core 2.0.0 is an internal video plugin integrated directly into the ePSXe emulator starting with version 2.0.0. Unlike older external plugins, you typically do not download it as a standalone file; it is included by default when you download the full emulator package from the official ePSXe website Key Features of the 2.0.0 GPU Core Resolution Scaling Epsxe Gpu Core 2.0.0 Plugin Download
for much sharper 3D graphics compared to the original PlayStation hardware LaunchBox Community Forums Brightness Profiles: The internal GPU core introduced several modern features