PS1: 33.8 Mhz 32-bit CPU, nameless GPU (effects: texture mapping, flat & gouraud shading, ect.), 2 MB main ram, 1 MB VRAM, can do 180K texture mapped and light sourced polygons per second.
N64: 93.7 Mhz 64-bit CPU, 62.5 Mhz RCP (effects: everything the PS1 did + bilinear filtering, mip mapping, anti-aliasing, environment mapping, ect.), 4 MB RDRAM (expendable to 8 MB via Expansion Pak), can do 100K polygons in N64 quality in Fast3D mode and 500 to 600K polygons in PS1 quality in Turbo3D mode
there you go if anyone has trouble comparing..