How many cores does the Samsung Galaxy S3 (SIII) have?

So many sites say 2 and others 4. Some say 2 at 1.5 GHz and some say 4 at 1.4 GHz. Which is it! Also, is this phone worth getting or should I wait for the iPhone 5? My old android was nothing but problems with many, many replacements. The iPhones I have owned (other than poor build quality and physically falling apart), have done well for me.

In the US, 2 cores at 1.5

Internationally, 4 at 1.4Ghz

It's because of 4G LTE, it doesn't support quadcore.

Quad-core at 1.4 GHz which means 4 cores at 1.4GHz.