Question fps of 1080p display at 720 vs native 720p

[GraySenshi]

As the title suggests I know running native rezlution is all ways best for visually. But what of strain on the system say you had a 8 or 4k display playing a game at 720p would the game get the same fps as a native 720p or would it be lower

 

[MrN1ce9uy]

Good question, AFAIK it would have the same performance either way.