Update:
I compiled RawTherapee on it and used it. This ASUS UX305CA with its Core m3-6Y30 CPU feels as fast in using RawTherapee (preview and saving) as does my Core i7-820QM laptop, while for general use (startup, shutdown, launching programs, programming) it feels much faster than the i7. Even though the m3 CPU is in some ways inferior to the i7, it makes up for that with room to spare by supporting newer features. Further, the m3 uses 4.5W while the i7 tractor uses 45W, meaning the m3 lets me process photos quietly and unplugged for hours, while the i7 rattles the house, wakes the neighbors and drains the battery in 30 minutes when new.