I am still relatively new to building PC's and I had a question regarding installing my GPU. My current PC had a rx580 8gb installed before I decided to upgrade because my friend gave me his old GPU after he upgraded, which was a rx5700. When using the rx580 it had 8 pins for power and my PSU had a 6+2 pin cable so I've been using that. The PSU unit is a 650w bronze rated PSU (EVGA if that matters). For my new GPU would I need to get a cable that splits into an 8 pin and 6 pin power supply or do I need a separate 6 pin cable to plug into my PSU that would be in addition to my current 8 pin one. And if both options are viable is there one that's safer. Any help would be appreciated.