SiSoft Sandra and Everest
In the memory benchmarks above, we see a major difference between the Socket 754 and the Socket 939 results. This can be explained by the better memory features on the FX-53 like 1T memory timings and dual-channel performance.
Looking closely at the Sandra CPU performance numbers, we can see that the ASRock K8 Combo-Z actually performs slightly slower than the rest while using the Socket 754. But if you switch to Socket 939, the numbers match up with the NF4 system.