I have the HP Envy H8-1445 Desktop PC and I was wondering what graphics card upgrades would be good for it? I'm new to this and desperately lost in it (running Windows 8). It has an AMD FX-8120 processor with an AMD Radeon HD 7450 GPU. The power supply is 460 watts. I would prefer to not upgrade the power supply but if necessary I will. I would like the GPU being able to run more high end games, such as: Skyrim, Tropico 5, Sim City 5 things like that. Thanks in advance.
>>-----> link to PC: http://electronics.woot.com/offers/hp-envy-desktop-w-windows-8-12
>>-----> link to PC: http://electronics.woot.com/offers/hp-envy-desktop-w-windows-8-12