Overclocking greatly varies due to what hardware is being used and who is doing the overclocking. Always remember that no two pieces of hardware will perform the same, so our results will differ from what you will might be able to get.
With stock BIOS settings, the AMD Phenom 8750 processor runs with a 200MHz bus speed and has a 12.0 multiplier that are used to reach the final core clock of 2.40GHz. As you can see above, the MSI K9A2 v1.0 motherboard runs at 200.0MHz, so the clock frequency is spot on. Let’s start off by overclocking without adjusting any voltages to see what the Phenom 8750 triple-core processor can do out of the box. The MSI K9A2 v1.0 motherboard BIOS is very simple to use with the ‘CPU FSB’, ‘HT Ratio’ and ‘CPU Ratio’ all ready to be set. For this test we adjusted just the CPU FSB to find the highest frequency we could hit and then tried changing the CPU Ratio (divider).
At 230MHz x 12.0 the final frequency of the processor was 2.76GHz, which is 360MHz increase over the stock frequency of 2.40GHz. Not bad for leaving everything in the BIOS on ‘Auto’ other than just one setting!
When it came to cranking up the voltages and going for the gold we took the CPU voltage to the max (1.5Vcore) and was able to reach 2.9GHz by increasing just the bus frequency on the Phenom X3 8750 processor. The final result was an overclock of 504MHz, which is about what we have seen on other B3 quad-cores in the past.
When it comes to benchmarks, the move from 2.4GHz to 2.9GHz increased performance by 16%, which is great considering the overclock was 21%. By overclocking the Phenom X3 8750 it was performing at nearly the same level as the AMD Phenom X4 9850!