liam161190

Hi, I currently have a AMD HD 7570 Graphics card and a 300 watt PSU. My PC is a HP pavalion p6-2388ea desktop computer. I have read from a website that in order to run my graphics card it requires 400 watts, but i only have a 300 watt PSU. The trouble im having is that I want to upgrade my graphics card to a 650ti Nvidia which I have looked at the specs and again it says it requires a minimum of 400W PSU. Do I need a new PSU for an upgrade of my graphics card or do you think it will run fine?? Many thanks Liam