From the benchmarks that are available via Tomshardware cpu charts, the performance difference depends on what you are doing.. The fx62 is marginally faster at some things, and marginally slower at other things, but it is a very small difference in performance, such a small difference that it may not be noticeable... I did noticed that the amd 64 x2 5600+ benched nearly identical to the fx62 at nearly all the cpu and game tests, probly due to the fx62 and x5600+ test rigs both using 800ddr2 memory where as the 6000+ is shown to be using 750ddr2. For what it is worth, I wouldn't buy the fx62 based on the out of the box performance tests shown at toms. If there are other things that it is better at, such as overclocking, then I would re-consider. There are a couple good reasons to go with the 6000+/nf5 ddr2 750 combo, over the fx62 nf5 ddr2 800 combo, "the price difference of the 6000+cpu and memory will save you some money; and the 6000+ tests at tomshardware shows that it is about 17 seconds faster than the fx62 at the large photo rendering benchmark"