Hi, I'm looking to upgrade my HD 4830 to a HD 5770. I have a 480W PSU in my pc, and I'm worried that it wont be enough to power it. Does anyone know what the recommended PSU wattage is for this particular card? Apart from the HD 4830, the only other power-consuming part is my AMD 3.1GHz dual core CPU. Thanks!
P.S. If I do need to upgrade the PSU, would 650W be enough?