Need help with upgrading video card?

I currently have a 480W PSU, AMD Athlon X4 640, 4GB DDR3 RAM and the MOBO is an Asus M4N68T-M V2. If I were to upgrade the video card would I need to upgrade the PSU? Regardless, what do you suggest?|||if you can get a 560Ti or a 6850 you shouldnt need to upgrade the PSU as long as the PSU has high efficiency and output continuous power.|||Regardless if you're upgrading to a new video card, you really should be on a quality power supply, from a reputable brand. Such as Corsair, Antec, Cooler Master, OCZ, Thermaltake, etc. And something with enough amperage on the 12v rail(s). The wattage listed on the box is always exaggerated, and not actually the *true* wattage that is pulled from the 12v rail -- which is what's important. Your generic 480w is not pulling "480w" from the 12v rail. It is most likely pulling only around 300w. With that in mind, yes, you should upgrade your power supply to something better for a new graphics card. You have to pay attention to the specs of the power supply, not just wattage listed on the box. Perhaps consider the Corsair TX650w. http://www.newegg.com/Product/Product.as…|||Meh, idk what to say about your power supply but check out this site for a handy value graphics card list that is up to date.