The AMD Athlon II X4 600e Processor is a four-core CPU, with each core clocked at 2.2 GHz. The Athlon II X4 600e Processor will generate a lot less heat than others: it has a thermal design power of just 45 watts. If you add to that AMD's Cool'n'Quiet technology, you have all the elements to make your PC as quiet as can be. All you need is a socket of the AM3 type in your motherboard. If your machine is going to have to be quiet, the AMD Athlon II X4 600e Processor will be a great CPU.