😱 Maybe in another dimension. But no.
EDIT: Expanding on that...not only do processors within the same architecture often have different sockets, making them incompatible, but the G3 and the P4 aren't even in the same galaxy in terms of processor architecture. The G3 is a PowerPC processor, the Pentium (like all Intels) is an x86. Square peg in a round hole in more ways than one.