When I put the settings on my pc to 900p or 1080p I already see a huge difference. Let alone 720p - 1080p. Even on a big television you clearly feel the difference. If you play CoD ghosts for a while on xbox one and afterwards playing on PS4 the difference is immense and I actually think that this factor alone can already define your purchase
Stories unfolded with my home made rap songs. Feel free to listen here with lyrics: https://youtu.be/vyT9PbK5_T0