These chips are not glory kings or speed demons. These chips are for someone that wants a LIGHT CHEAP gamer or HTPC/Small platform. If you want massive frame rates or low PI scores. Go with your gut and get intel SB/IB.
After that being said, I will probably pick the 5800K up for a HTPC.
7970 3GB *Unlocked* = 8 Threads
5770 1GB OCed = 2 Threads