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 might be able to get.
The Intel Pentium G3220 is not a K series processor. This means that the multiplier is locked with the only adjustment going down. To see if we can push this processor beyond the designed limits we will need to overclock via the Base Clock. Overclocking via the Bclk is typically quite limited, but we’re gonna go ahead and see if we can’t get a little bit of free performance out of our G3220! Out of the box the Intel Pentium G3220 features a bclk of 100MHz and a CPU multiplier of x30 giving us a final processor frequency of 3.0GHz. The Pentium processors do not feature the Intel Turbo Boost so the highest we will see this processor go is 3.0GHz!
With a little bit of trial and error, I was able to increase the base clock to 103.6MHz. This brought our 3.0GHz dual core processor to 3.107GHz, a gain of 3.6%. It’s not a record breaker, but it’ll do!
Aside from the Bclk, the only other adjustment that was made we the CPU Vcore. The processor voltage was offset by +.03 Volts. Anything over 103.6 MHz was unstable and would lock up regardless of the Vcore applied to the processor.
Being able to increase the Intel Pentium G3220 by 3.6% doesn’t give us the greatest gains in Cinebench R15. Though it is inline with the gains from overclocking, the CPU (all cores) jumped to 237, a gain of 3.5% and the single core increase to 122, a gain of 2.5%.