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Nvidia graphics technology in laptop Asus N61JV Optimus combines hardware and software to automatically switch between the Nvidia graphics processor and graphics integrated on the motherboard chipset (onboard), according to the needs of applications that are running. Optimus uses the driver to detect when the user open the game or software that requires quite a lot of graphics power, and then replace the Nvidia graphics. Graphic displacement does not require CPU power, only to switch off power and increase battery life by using onboard graphics.
Nvidia GPU is called GeForce GT325M with 1GB memory, use the display buffer of the onboard graphics rather than with a switch between video output. According to Asus, Asus laptop N61JV price range is around 949 pounds or $ 1.457