Intel HD 3000 or Nvidia Geforce 320M

Hi p,

http://www.macworld.co.uk/mac/reviews/index.cfm?reviewid=3263850

In the previous generation of MacBook Pros, Apple used Intel's integrated HD graphics only in the higher-end models, which also had a second, discrete GPU, the Nvidia GeForce GT 330M. The GT 330M kicked in for graphically intensive applications. With the older 13in MacBook Pros, Apple didn't think the Intel HD graphics available at the time were powerful enough to be the only graphics option, so it stuck with Core 2 Duo processors and used Nvidia's integrated GeForce 320M graphics. With the new HD Graphics 3000 processor, Apple found the performance good enough to finally invite the 13in models into the new Core era.