The Pakistani Embassy in Washington estimated there are 800, 000 to 900, 000 Pakistani nationals, Americans of Pakistani descent and dual nationals those holding both Pakistani and American citizenship across the U.s.
If you're scoring at home, NVIDIA currently holds the lead in single-GPU graphics cards with its GeForce GTX 580, but ATI's dual-chip Radeon HD 5970 has been holding down the absolute speed crown for a good long while.