These card are of pretty high standards of mid-range classification so i am afraid that they take the whole system with them. I have hp dc 7900 convertible minitower pc whose product number is kp719av it has a core 2 duo E6550 2.33 ghz , 2gb ram DDR2, 80 gb harddrive when i bought it. NOTE: I HAVE UPGRADED PROCESSOR TO 3.0GHZ.RAM FROM 2GB TO 4GB AND HARD DRIVE FROM 80 GB TO 250 GB.PLEASE REPLY FAST PLEASE!!!!!!!!!!!!!