So i just installed a dualboot setup on my SGS3. I use primary rom the latest cyanogen mod 10.1 nightly and for the secondary rom latest omega rom 4.1.2. For kernel i use the latest one from Siyah. The omega rom i use for intense gaming, multimedia, pictures, music, comunications and so on, and the cyanogen mod rom i use for daily calling/texting use. The omega rom i left untouched in terms of undervolting/underclocking as i need the power (but i really don't see any reason to OC my cpu/gpu as it runs perfectly smooth). But i heavily undervolted/underclocked my CPU/GPU in cyanogen rom for battery life as the following:
1. CPU: running only 2 cores at minimum of 200mhz and maximum of 1000mhz with -100mV undervolting
2. CPU undervolting steps i left untouched
3. my GPU runs at the following steps:
108mhz - 800mV
160mhz - 800mV
266mhz - 825mV
350mhz - 850mV
400mhz - 875mV
My system is perfectly stable even after heavy benchmarking, i reduced it to a galaxy nexus level of performance. For daily use in telephony/texting/social media is more than enaugh. I am now doing a full charge and run only on cyanogen mod with average use and auto brightness (2 mail clients, watsapp, facebook mess, yahoo mess, hangouts, 3G allways on) and i will report back with the battery stats after a full discharge. Here are some screenshots for my under voltage/clocking setup:
1. CPU: running only 2 cores at minimum of 200mhz and maximum of 1000mhz with -100mV undervolting
2. CPU undervolting steps i left untouched
3. my GPU runs at the following steps:
108mhz - 800mV
160mhz - 800mV
266mhz - 825mV
350mhz - 850mV
400mhz - 875mV
My system is perfectly stable even after heavy benchmarking, i reduced it to a galaxy nexus level of performance. For daily use in telephony/texting/social media is more than enaugh. I am now doing a full charge and run only on cyanogen mod with average use and auto brightness (2 mail clients, watsapp, facebook mess, yahoo mess, hangouts, 3G allways on) and i will report back with the battery stats after a full discharge. Here are some screenshots for my under voltage/clocking setup: