well that's sad to see HTC have been delisted due to a Samsung'esque behavior, aka: cheating with the power settings when 3DMark or any other benchmark is detected (which in the idea of 3DMark is totally wrong since it does not reflect the real power of the phone in his normal state) as i stated in Google Android Clubhouse
Antutu got a X edition (grey icone, not the one i used above) which use a different app name once installed, to prevent frauds since some devices enable a "special" OC mode for benchmark like Antutu or 3Dmark (since 3Dmark ban any device with that kind of behavior)
http://www.futuremark.com/support/benchmark-rules
tho it's fine if it's a user OC and not a "special OC" made by the manufacturer who bypass the normal stock thermal/power settings
indeed there is a catch the One M8 has a S801 and my G2 has a S800 same gpu same cpu just a little speed bump who do not warrant the 4k points difference between them at stock
(unless you OC manually CPU/GPU ofc)