The new AMD Athlon II X4 620 is a budget Quad-Core 45nm Desktop processor.It is a 2.6GHz clock speed CPU with 2MB L2 cache(512KB per core) and 95 W TDP.It is a good performance processor at a budget price.The supporting motherboards are also inexpensive and it also supports hardware virtualization.
It gives good competition to the some of the Intel’s Quad-core processers (like Intel Quad core Q8400) in both performance and price.