Yeah, maybe also shorten a bit the pipeline since you won't clock these at 5Ghz and you get even more performance thanks to lower penalty on misprediction.those gracemont cores are as fast as skylake cores, in fact they are streamlined skylake cores with hyperthreading removed and smaller decoder, allowing it to nearly be the size of 1/4 th of the golden cove cores
that's impressive having small cores with single core performance of a 10900k is nothing short of amazing
It all adds up and makes and a lot of sense to use smaller cores also, that is, IF you can manage running all of them (big/small) in tandem with good efficiency.