Hi rRansom and welcome to Tom's Hardware forum.
Here is a little explanation of the difference between overclock using bus speed and multiplier.
The CPU frequency is calculated using two main things: Base clock (or bus speed) and multiplier. The stock frequency for that X4 965 is 3.4GHz, that frequency is calculated with 200MHz in the bus frequency (base clock) and x17 in the multiplier. Now, the multiplier ONLY affect the frequency of the CPU himself, that means that if you change the multiplier to x18, your frequency will rise to 3.6GHz.
The other side is the bus frequency, this item determine your CPU frequency as well as the RAM frequency, HT frequency and NB frequency. With this said, if you change for example your bus frequency from 200 to 220 as you have it in the CPU screenshot, not only the CPU frequency rise, the RAM, HT (QPI link) and NB (motherboard tab) also rise. But what that means?
Well, overclocking with bus frequency is more difficult since you have to keep the RAM, HT and NB in the stock operational frequency while you change the CPU frequency, in this way, exist a lot of things that can fail.