It’s fine and sometimes benefitial to do so, quite often i’ll toggle it a few hundred because some games want more power to the cpu while other games do not, you can gain a few fps from a 1400mhz gpu quite often.

While it’s not exactly an awnser to your question I find 10watts and 1200 gpu can often run games well enough while cutting the power usage in half, then I go up or down from there to see what I can get out of the deck for a game.