Of course it will work... but take a look at this: System Requirements: Minimum of a 680 power supply. (Minimum recommended power supply with +12 Volt current rating of 46 Amps.) How about your PSU? Do u have enough power to feed that card?
I'm planning on getting CORSAIR CMPSU-750TX 750W Compatible with Core i7 Power Supply with Intel Core i7-860 2.8GHz LGA 1156 95W Quad-Core Processor
Then it meet the requirement... Okay then, i'll say u are very good with that build...
Thanks for the tip okini ill have to think about it then, im new to building comps so im not 100% sure that im comfortable with overclocking yet i dont want to mess anything up. So if i dont overclock it would the HD4890 still be better?