High resolution rendering in RPCS3 adds support for “resolutions far exceeding what the PS3 could handle” — up to 10K, according to the emulator’s creators.
To show off high resolution rendering, RPCS3’s creators released a video showing PS3 titles Ni no Kuni: Wrath of the White Witch, Demon’s Souls, Yakuza 4, Catherine and Tekken 6 running at 4K.
Games that require this setting will have to wait a bit longer before they can benefit from high resolution rendering.”
The developers point out that the emulator’s other new feature in RPCS3, anisotropic filtering up to 16x, also helps PS3 titles look much sharper in the emulator.