If there is one thing I have learned by using both AMD and Intel it is not to be a Ghz monkey. This chips does everything my firstname.lastname@example.org did and is better in gaming.
Unfortunately, folks with high end/optimal gaming rigs may be more rare than you think. Most games like EQ II, aka MMORPGs, are coded/set for the lowest common denominator. While our GPUs with massive muscle do help to a degree they are woefully underutilized. The alarming bulk of EQ II graphics is simple 1.1.
Yes, I feel your pain, having your CPU "tanking", the GPU would make a much better MT, IMO
The CPU should "assist".