How Have Meltdown/Spectre Patches Affected Mobile Intel CPU performance?

I was curious about this, as I am currently prospecting the purchase of a gaming laptop w/ the 7700hq CPU in it. However, I do not want to buy it and find out that it is getting terrible performance due to increased temperatures or performance losses. Is there anyone who can report how the patches render themselves in performance?

the jury is still out. for games on the machine small impact but for anything else it could be as little as 10% or as much as 50% or better.