ATI and Nvidia graphic processing units will speed both Apple’s Snow Leopard and Microsoft Windows 7 according to the product manager of Nvidia’s Tesla products.

He said, “…if your laptop has an Nvidia GPU or ATI (AMD) GPU, it will run the operating system faster because the operating system will essentially see two processors in the system. For the first time, the operating system is going to see the GPU both as a graphics chip and as a compute engine. Additionally, consumers using Windows 7 will see the GPU as a CPU in Task Manager.”

Source: Tom’s Hardware