As you can see, the tests are very consistent within the same preset. The average distance from the average score is just 0.49% for the Basic preset, 0.66% for the Extreme, and 0.05% for the Extreme HD. It does not take careful statistical analysis to recognize that this is significant consistency, which is quite important for the use of this benchmark."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips