i have a onboard graphic card of 895 mb of ati.. and external vga card is n vidia g force of 1 gb.... could i use them combined power ????? means 1895mb ....
if its possible then which port i would choose????
More about :combined power board external video card
1. no you cant use them combined.
2. the onboard graphics uses 895mb of your system memory, it does not actually have its own memory.
3. you obviously have little to no understanding about gfx cards.
4. You need to read up about gfx cards and the way they work instead of asking us. a basic google would reveal this answer for you.