It's easy to summarize the problem. Intel's Chromebook Lake (Lunar Lake) has 4 cores and 8 threads, because an eCore is roughly as fast as a 2nd thread. So these are 2013 CPUs, with 4 cores and 8 threads. There really isn't much horsepower in these laptops. Intel tends to sell only two types of product. Low-temperature underpowered "loser laptops", and Overheating high-powered "Melt your face" desktops masquerading as laptops, they cut to half-speed when you unplug them from the wall! Lunar Lake is loser lake, the slower type, that's all you really need to know. They are underpowered laptops. I say this as a new and very happy owner of an AMD hx365 ai laptop (asus s16 zenbook).
Note that an AMD Zen5 PCore runs at 5.0 ot 5.1 Mhz, and an eCore runs at 3.33 Ghz, so an eCore for AMD is 2/3rds of the speed of a pCore, roughly. So a 10-core hx365 = 8-core AMD 8845hx, a 12-core hx370 = AMD 9.5 core 8945hx, roughly. So the AMD chips are roughly 2x faster than the Intel chips.