After installing a genuine graphical PKG:
The PS3’s 256MB of VRAM is simply insufficient. Any PKG file that promises 4K is almost certainly a bricker (a file designed to corrupt your console’s flash memory) or a miner (installs cryptocurrency malware when run on a PC).
The PlayStation 3 is a home video game console released by Sony in 2006. It natively supports resolutions up to . The PS3 cannot output games at 4K resolution due to its hardware limitations (HDMI 1.4 and older GPU architecture).
: New startup logos (coldboots), gameboot animations, custom "waves" backgrounds, and high-quality PS4/PS5 style icons.