Memory Type: DDR3 PC3-8500, DDR3 (non-ECC)
Maximum Memory: 8GB
These 15" systems may utilize one of the following processors:
2.53GHz, 2.66GHz, 2.8GHz or 3.06GHz Intel Core 2 Duo processors.
Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.
video - installing memory
nVidia GeForce 9400M Graphics
External Connector: 15-hole connector
Graphics Card A circuit board fitted to a computer containing the necessary video memory and other electronics to provide a bitmap display. Adaptors vary in the resolution (number of pixels) and number of colours they can display, and in the refresh rate they support. These parameters are also limited by the monitor to which the adaptor is connected.