The second comparison was performed during maximum processor overclocking. This time we disabled extended processor power-saving modes in the mainboard BIOS using “C-STATE” parameter, which limited the maximum processor clock frequency multiplier setting with 22x. In this case the CPU could work at higher base clock than with 26x multiplier, which means that we end up with higher resulting performance although it happens at the expense of higher power consumption in idle mode.

This time, however, slow performance of DFI LANPARTY DK P55-T3eH9 is a reason for concern. The lag behind Asus and Gigabyte boards is not surprising, because our board didn’t overclock the CPU to 3.95 GHz. However, we were very upset to see it fall behind ASRock and Biostar solutions, which overclocked the processor to 3.9 GHz. Again, just like in the nominal mode the performance difference between the DFI boards and its competitors is insignificant, but the permanency of this lag is troubling. Only in those benchmarks where the graphics card matters more, DFI LANPARTY DK P55-T3eH9 results look better for some reason. However, we didn’t overclock the graphics card, we overclocked the CPU and in processor tests the board falls behind, which is not good.