According to the information previously circulated, Samsung Galaxy S III will have a 720p high-definition display Super AMOLED, the screen size will be between 4.6 to 4.8 inches, and also it is equipped with quad-core processors and it will have a 12 megapixel rear camera. The hardware configuration is very powerful.
Reference : http://de.appchina.com/news/employee-said-galaxy-s-iii-will-release-may-3rd/