I want to upgrade my video card?..is there any NVIDA or Radeon with 512mb video memory compatible with compaq presario cq4190L?|||That PC only has a 220W power supply. Consider these low wattage cards;
ATI HD 5570= 43 watts
ATI HD 4650= 48 watts
The more powerful graphics cards would require a bigger power supply (400 to 500W).
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