Certain GPUs are having both 1gb and 2gb models !
Like for eg AMD 8750M has both 1gb DDR3 and 2gb DDR3.
What will be the performance difference b/w them ?
Will the 2gb one have a much better performance over the 1 gb one ?
The memory on the video card is mainly used by the card for the display resolution. A 1gb card will be able to go up to a 1920x1080 resolution and a 2gb card can do 2560x1440 going any higher would require more card memory. It also helps with multiple monitors to have more video memory.