Summary: The larger 27-inch model is similar to the new 21.5-inch iMac, but it has a faster 2.9GHz Core i5 CPU and a higher-end Nvidia GeForce GTX 660M graphics chip.
Summary: The larger 27-inch model is similar to the new 21.5-inch iMac, but it has a faster 2.9GHz Core i5 CPU and a higher-end Nvidia GeForce GTX 660M graphics chip.