[Discussion] Multi-tasking with an i7

Hi all, building a game machine, have read and read on ryzen vs intel. I am pretty much set on an i7 7700k.

One question for those of you who have one or an overclocked i5 - can you game in 1080p on one monitor and have netflix in 1080p on a second monitor? and some chrome tabs? all smooth or is that starting to need extra cores?

It's hard to tell what people really mean by "multitasking" like - do you want to render your 4k commercial while you play a round of PUBG? OR, watch netflix while you play witcher 3. Im curious to know where the i7 lies in that spectrum more specifically, paired with a 1070/80!

Thanks all !