I notice how 'viable' isn't an operative in your statement.
MediaTek was always viable, it was always GPU that made non-Qualcomm non-viable
They've come a long way, Samsung is apparently considering Mediatek chips for their next flagship phone (S25).
Their flagship tablets line up, Galaxy Tab S10 plus and ultra, is entirely Mediatek too.
They're pretty good. Just can't beat qualcomm / Apple flagship. So around Intel level ;)
300W in a phone chip is a bit toasty.
Intel's latest Arrow Lake stuff, about to go on sale, is said to have much better power efficiency, FWIW. Something like half the wattage for roughly equivalent benchmark results, according to them.
Dimensity 9400 looks good
Without (complete) kernel sources, they're already e-waste.