ATHLON II X3 455 VS PHENOM II X2 560 We are testing Athlon II X3 455 CPU against AMD Phenom II X2 560 CPU. Athlon II X3 455 is clocked at 3300Mhz and the Phenom II X2 560 is also clocked at 3300Mhz. We will be using Benchmarks for testing Athlon II X3 455 and Phenom II X2 560 which are:- Divx, Povray, Sysmark 2007, Windows Media Encoder, Dragon Age Origins and World of Warcraft. AMD Athlon II X3 455 might be Triple Core but AMD Phenom II X2 560 has 6MB Level 3 Cache to help performance."