Desktop computing is actually pretty good at utilizing many cores these days: the booting process, starting non-trivial applications, using full-disk encryption, running multiple tabs in a browser (or just having a browser open with a few tabs + something else), in all of these conditions 4c/4t CPU will provide tangible, perceivable difference. 2c/4t CPUs are obsolete and I wouldn't recommend one even for an entry-level computer.
Just unsuited for you.
Can we take a moment...stop...and all re-read this again, and weep for where we've landed with all of this technology?
I have four Newegg tabs, one Amazon tab, one Verge tab, and one Engadget tab open in Firefox. CPU utilization is 3% on this ancient i3 laptop.
Maybe your experience isn't typical. That's all I'm suggesting.
Unlike Intel where you have to pay more $$$ for a K CPU and a top chipset (Z170/Z270) board.