Nvidia's Quadro Plex Pro 1000 PC graphics card is the greatest graphics card in the entire world. Though it's designed for use in integrated engineering computers as opposed to gaming, it'd be pretty sweet to play Half Life with an $18,000 card.
Nvidia says "the fill rate reaches 80 billion pixels/s while the geometry performance is rated at seven billion vertices/s." and goes on to say "a node can achieve up to 64x full scene anti-aliasing (FSAA), deliver a performance of up to 148 megapixels on 16 synchronized digital-output channels and eight HD SDI channels."
I don't know what any of that means either.
Gameworld network: Nvidia Reveal $18,000 PC Graphics Card