The power of the modern computer really shines when compared to the power of a supercomputer from years ago. The Cray 2, the world's most powerful supercomputer from 1989 had a theoretical performance of 3.9 GigaFLOPS. The modern video card such as the NVIDIA GeForce GTX 280 has a theoretical computing performance of 933 GigaFLOPS, approaching the performance in computing power of the fastest supercomputer from 1996.
NVIDIA has released their Tesla supercomputer on a video card a year or so ago. With the use of CUDA and their TESLA video cards you can build a supercomputer with the right motherboard. A few months ago I reviewed the ASUS P6T6 Revolution motherboard with six PCI Express x16 slots. A short while ago I reviewed the ASRock X58 Supercomputer with four PCI Express slots that could take up to three Tesla video cards and a Quadro CX card so the idea of a supercomputer based on Intel Core i7 chipset is nothing new. Today marks the debut of ASUS's P6T7 WS Supercomputer motherboard which has no less than seven PCI Express x16 slots!