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.
Its a GPU (a Graphics Processing Unit) card used to handle graphics in a PC. Its the fourth generation series, made by Nvidia. Its needed if you want to play high end PC games, which demand heavy graphics processing.
best buy & circuit city
Depends on the Graphics card with the PC
By upgrading the graphics card.
The graphics card will be installed into your PC,so if 2 monitors are connected they will both have the graphics.
No. Not at all.
Yes because a PC had a better graphics card than an xbox 360
You can not convert the RAM that is on the PC to RAM for your graphics card. The only way to get RAM for a graphics card is to buy one that already has RAM on it. The graphics cards that have their own RAM are normally higher end ones that cost about $50-$70 for the cheapest ones.
The best graphics card to run in a PC will be based on what your motherboard is able to support and what type of connection it has. Normally, boards with PCI express are good cards. However, some of the best cards are Radeon cards or Invida cards, which are not cheap normally.
nvidia has info about selecting a power supply based on a PC and Graphics card setup. Obviously the best choice is to go to the manufacturers web site to find out how many Amps a particular card uses.
basically, without a graphics card your computer can operate but you wouldn't be able to see what it's doing.
It depends on your graphics card specifications and what resolution you run the game on