I am a noob when it comes to computers , yet a hard core gamer... I have a Dell studio XPS 9100 Intel Core i7-930 Processor(8MB L2 Cache, 2.80GHz) I am looking for a quality replacement graphics card to replace the ATI Radeon HD 5770 1024MB GDDR5 card that's in the rig currently... I have no clue what to look for or choose , but i do know it is time to replace the card as the games I play EX.(BF4, RO2, Mirrors Edge, etc) do not run as well as id like being a semi competitive player. I would like to spend $ 500.00 or less to stay in my reasonable budget thank you ahead of time for all of you assistance! additionally power supply is a Dell t3400 525 W supply, I currently have 8GB DDR3 SDRAM at 1333MHz I perfer to play at the highest possible resolution Non windowed /Fullscreen...If i need to give more info please let me know..Im new to explaining this stuff but excited to talk about it and work with it...