How to identify the hardware of my phone? I have a china phone and it has a quadcore processor. Now how do i figure out what chipset,processor it has and which roms is it compatible with????
There's a bunch of system info apps available on the markets. Apart from those monitoring resource usage are also some showing you details on the hardware components, such as Hardware Info and System Info Droid:

  
Hardware Info and System Info Droid (source: Google Play; click images for larger variants)

These two should tell you everything you need – except for "which roms is it compatible with". That's always hard to tell if you don't know the exact name (and sometimes even if you do).