Ah, I am a bit of an AMD lover I have to admit.
I also have a 990FX-UD3 - I think I have an 8120 in that? Dunno, Ill have to check it out.
But at the time, I also had an i7 860 in a P55-UD3 and that Intel was about on par with the AMD, although some things were quicker, some were slower, but roughly on par.
I failed to decide which to go for, for my next setup and so I went with both, and I chose the Sabetooth Motherboard to use for both.
The Intel was quicker, I hate myself for admitting, however, I used the Intel in my workshop and the AMD in the living room for the family's use.
But at the end of the day, in spite of what so many people will say, when it comes to 99.99% of games, they will all play the games absolutely exactly the same as each other.
Sure, if I went and benchmarked this one against the other, I will see a certain % between them, but in truth, I dont think that Imyself would actually honestly see any real difference.
If it comes to Video processing etc, then sure, I think the Intels are better, but for gaming.. No!
( Waits for the haters )