I have AMD Turion 2 2.50ghz dual-core. I do need some help in picking a better CPU. Will a 3.0ghz Phenom 2 dual-core be an improvement enough or do I need a Triple core or quad, and if so what speed would work. Do triple and quad cores with lower speeds do better then dual cores with faster speeds, like 2.2ghz quad core vs. 3.0ghz dual-core ? Please be specific in explaining this so I can might the right purchase. Will a AMD phenom 2 triple core clocked at 2.2ghz outperform an AMD dual-core at 2.50ghz. Or will a quad core clocked at around 1.8ghz outperform both dual and tripple. i'm still confused to whether a tri or quad core clocked at a lower speed will outperform a dual-core clocked at a higher speed. dual 3.0ghz vs. tri 2.2ghz vs. quad 1.8ghz. Which is the best for performance ? The price on the Amd Phenom 2 dual-core N660 is double the price of a phenom quad core at 1.8 - 2.2 ghz. Performance benchmarks indicate an increase from turion 2 p560 2.5ghz score of 1,551 to 1,858 or so with the dual-core phenom n660 3ghz. And quad core 1.8ghz was 2,000 something, but the benchmark on that was probably done with a 4 core program.