if you have XP,yes.But you also need Vista for it to work.
Yes, you will need a powerful PC not just a good graphics card to take advantage of the high end graphics. However you will still have to wait since GTA 4 has not been announced for PC.
In order to know what the best graphics card a certain PC can handle we need to know the type of PC you are asking about.
Depends on the Graphics card with the PC
By upgrading the graphics card.
you need a new graphics card
The graphics card will be installed into your PC,so if 2 monitors are connected they will both have the graphics.
nvidia gtx 480 or ati radeon hd 5870
Graphics CardEVGA GTX 260 216 55nm
Every PC has to have either graphics embedded into the motherboard or either a a dedicated graphics card that fits into an expansion slot on the motherboard. You can buy a motherboard without graphics, but you would need to supply a graphics card to go with it.
No. Not at all.
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No matter what you are doing on a PC if you want to start the computer and see a display on the screen, you must have a graphics card. Which means that if he has a working computer then he has a graphics card. Some motherboards come with graphics cards built into the board, but either way the computer has one. Now knowing if your graphics card is powerful enough for some games is a different task. You need to know the game you want to play's system requirements, and the computers specs such as ram hard drive space and video card power.