GT635M

Hello all, I am using MSI afterburner to try and squeeze a little more fps for CS GO on my GeForce 635M (yes I am aware I "shouldn't" be OCing laptop GPUs, but it has been done before), The problem is that when I OC the Core Clock, between 70-85 degree C (85 tends to be the max during gaming)...

I'm about to assemble my new PC with new parts soon. I'm wondering, is it best to keep my current case or upgrade to my desired choice. Current: https://m.newegg.com/products/N82E16811119260 Upgrade: https://m.newegg.com/products/N82E16811119328