CPU: Sony Emotion Engine @ 294.912 MHz (299 MHz on new SKUs)
GFX: Sony Graphics Synthesizer @ 147.456 MHz
SND: SPU1 + SPU2 @ 8 MHz
MEM: 32 MB System / 4 MB Video / 2 MB Audio
RES: 320x240p, 640x480i or 720x480i (576i on PAL, 480p and 1080i using component cable)
Not every game supported 16:9 or progressive scan resolutions and only a few games, like Gran Turismo 4, supported 1080i.
Emotion Engine (known as EE) was a MIPS R5900 developed by Toshiba.