By $500 and it doesn't even take me to and from the welfare office
Nvidia is preparing to launch the previously announced GeForce GTX Titan Z. It costs three grand. Roughly $.50 for each of its 5,760 CUDA cores or $250 for each gig of its 12GB GDDR5 VRAM.
This is not a product for normal human consumption, of course, unless you are a lunatic or think your four door sedan could use a jet engine.