In the posters case, going from their i7-4800mq to a Ryzen 5800u, would result in roughly +50% single core performance while also doubling the amount of cores,

In the posters case, going from their i7-4800mq to a Ryzen 5800u, would result in roughly +50% single core performance while also doubling the amount of cores, resulting in ~3x the performance at 1/3 of the TDP.