You might not have noticed, but your single-core performance will take a serious hit if you disable turbo boost. For the AMD 7480u, turbo boost frequency is 5.1Ghz vs 3.3GHz base clock frequency. If you disable turbo boost you lose 36% single-core performance.
Wouldnt something like this tool [0] be a cleaner solution?
Anecdotal, obviously, but disabling Turbo-Core [0] on my AMD Framework 13 stopped all of my fan noise and heat complaints, with no noticeable performance impacts. It went from being so loud that my wife on the other side of the room would ask if my computer was okay to quieter than my ThinkPad, and from noticeably hot to just slightly warm.
Kind of ridiculous that it takes messing with an obscure system file to resolve it, but not any more ridiculous than issues I've had with other brands.
[0] It's `echo 0 > /sys/devices/system/cpu/cpufreq/boost` or something like that, and `echo 1` to turn it back on when you want that extra performance.