Alright, let me show the problem with this MX150, when a company also has an MX130, and why I feel Nvidia should take a hit on this. The gaps in performance are capable of edging comfortably into each others' territory. Take special note of that Cloud Gate 720p, the extreme width of the red bar on the MX150 there with min / max perf almost doubled in points. Also: Fire Strike 1080p: MX130 average scores higher than MX150 minimums. So much for a 'generational leap forward'... Keep in mind MX130 is Maxwell, thus less efficient.
Yes, in a few synthetics it looks like there isn't much performance difference. But did you look at the actual game tests? In any of the tests that actually have a MX130 score, the MX150's minimums beat the MX130.
FF XV low 720p: MX130 = 22.5FPS MX150 Minimum = 25.2FPS
Assisin's Creed Origins Low 720p: MX130 = 29FPS MX150 Minimum = 42FPS
Middle Earth: SoW Low 720p: MX130 = 43FPS MX150 Minimum = 47FPS
Rocket League Low 720p: MX130 = 94FPS MX150 Minimum = 127FPS
So, obviously, even the weaker version of the MX150 is still outperforming the MX130 in real world tests.
But, again, the biggest part of this is likely going to come down to the thermals of the laptop. Which is why the more efficient, and less heat outputting, MX150 is performing better than the MX130 in the real world tests. Because, even notebookcheck's own reviews on laptops with the weaker MX150 note that it will boost to over 1600MHz when the laptop is cool. The problem is these 13" ultrathins don't keep things cool for very long, again the same reviews note that even the processor begins to lower the boost under load too due to heat.
And the MX130's TPD is 30W for the configuration that is coming close to matching the weaker MX150. While the weaker MX150 only has a TDP of 10W. So that is why the weaker MX150 exists. If they would put a top MX130 in one of these 13" laptops, it would throttle so hard it wouldn't even come close to scoring as well as it did in those synthetics, forget about the real world tests. I doubt it would even be able to maintain its base clock.