[wnf15]

can you help me to choose a graphic card which can play SC2.It is said that SC2 requires a high demand of computer

[Dalo Harkin]

Ok first off I take it SC2 is Starcraft 2?
can you tell us what your PC has in it at the moment becuase if you only have a 300Watt PSU then you are very limited depending what CPU you have.

[SweatyOmnivore]

To be specific we need to know what interface your motherboard has for graphics card. This could be either PCI Express x16 or AGP x4/8. depending on which one you have will determine what sort of choice you will get. you can check by either opening the case or by using diagnostic software such as sisoft sandra (just google it) which is free.

We also need to know what power supply you have running and the specs of it can be looked up on the side of the power supply when you open the case. we need to know what the voltage and the 12v ampage which is all written on the power supply.

once you have that we can recommend a graphics card. Starcraft 2 is quite a newish game (not sure its even out yet) so you gonna need quite a beefy card unless your ok with putting down the visuals to play the game.

[Dalo Harkin]

Strategy games require lots of GPU (graphics card) power as there are multiple units and structures doing many different things - you need along the lines of:-
CPU core 2
GPU 9600GT
2GB RAM