I'm upgrading my rig ( Intel i5+ 8400 2.8ghz, Intel B360chipset, 8gb DDR4 with a rx560 2gb currently) and was looking at the rx5700 as a possible upgrade . I'm also using an Acer Nitro VG271 that has freesync. Problem is I'm seeing the rx5700xt as well as the Challenger D and I'm now confused... Any tips would be appreciated. I'm using Windows 10. My PSU is 800 but I may upgrade as well....