Question / Help Using a mobile i7 2nd gen for streaming rig?

Currently, I game and stream on the same computer, but I have to limit my stream quality somewhat in order to do so - and some games I am not even able to stream. So I am looking at a cheap way to get a dedicated OBS machine and my friend has a Lenovo W520 laptop from a couple years ago. It has a 2nd gen i7 quad core CPU, which is a little dated, but would it be able to handle OBS streaming at 720p60, 4000 kbps, and at least faster CPU preset? I notice most modern capture cards recommend 4th gen i5 or better, so I am hoping this would still qualify and work with those, too.
 
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