AMD Athlon II X4 620 & 630: The First $99 Quad Core CPU
 

How does AMD respond to Lynnfield? Is it by drastically cutting prices on Phenom II? Nope. By introducing the world’s first quad-core processor to debut at $99. Now that’s cool.

It’s called the Athlon II X4 and its existence shouldn’t be any surprise. AMD quietly announced it along with the Athlon II X2 line.

http://www.anandtech.com/cpuchipsets...oc.aspx?i=3638