Does using the same active source twice or thrice use more cpu?

[fchabot]

im trying to test this, but the cpu usage is fluctuating alot.

im having the same source twice because i need two different framing using hot keys or scenes, and i need them to stay synched..
im using the "add existing" option in media source and video capture device aswell

i havent found anything in search..

 

[fchabot]

so after further testing, ive used higher resolution sources and i can see that "add existing" option does not impact cpu.
if i add the same source as new sources twice it will double cpu usage.