Nvidia has done it again, with it's newest video card, the geforce 7800 GTX. If money is no object and you demand the best, this is the video card for you.The 7800 GTX, which promises 600 MHz, 256 MB of 256-bit DDR3 memory and a graphics core clock speed of 430 MHz, is the absolute fastest video card, to date, that money can buy.Despite the high clock speeds, the 7800 utilizes a single-slot cooling solution. This is made possible because of the processor size which is 20 NM smaller then their .