I have a HP Pavilion Elite HPE 500f has AMD Phenom II 1045 T Six Core Processor 8 GB DDR3 Amd Radeon HD 6450 with 512 MB DDR3 dedicated memory 1.5 TB HDD. that I bought like 5 years ago. I'm currently building a new gaming PC. So here is my question. Is there a GPU out there that I can put in my PC I listed beginning of post that will run WoW in ultra 1080 60+FPS steady? (excluding WoW's bottle necking I already know the engine sucks). And I have a 850 PSU for my new build that I can throw in there temporarily.