Help me figure out what this phone is coz' i really need a new rom !

[mirandam]

Just another suggestion: check out your sensors with a sensor test app. The specs of your phone tell a different story of what antutu show to be "supported", so you'd do wise to get a good idea of what's really in your phone. Also I wouldn't try too much to find a different rom, usually it is better to get a good set of apps (not too many, but those that work good and are lightweight on resources).
I've had a similar case of a so-called octacore phone that had a dual core. I made a well balanced setup to have a phone that works smooth and reliable, up until today it still works nice.