Boomer, when you read the review I linked, you'll see that your current chip is included in the tests. So it's compared against the chip I'm talking about. It's been a couple of months since I read the whole article, so I don't remember all of the results, but I don't think the Intel E6750 "smoked" your chip, or any chip for that matter. Even though the E6750 placed high on the result charts, you'll notice that the difference in FPS between the chips in the top part of the bracket is negligible. Sometimes the difference in FPS is less than 5, or 10, which you won't notice while playing a game, only if your benchmarking.
If you're happy with you current chip, stay with it. I only posted what I did for others out there thinking of buying at this time. You simply can't beat an Intel for price/perfomance at this time.
Like I said though, it's been a while since I've read the whole review, and I may be mistaken on the difference between your AMD and the E6750. I recommend you read it yourself. I'd hate to give bad advice.