Looking to upgrade GPU so I can run higher graphics settings. I play Warthunder, Armored Warfare, heliborne. etc so nothing too gnarly. CPU is an A-8 7600 radeon 3.1GHz. 16 GB RAM. Money is no an issue, I just don't want to overdo it and get more card than i I need or can use. Also, I only have a 550W power supply. Should I upgrade that as well. It's pretty much brand new.