Could HSA theoretically be useful?

Considering how SVP takes advantage of both the CPU and GPU in tanduim, I was just thinking about if HSA would theoretically provide any benefits to SVP?  I realize that SVP is (at least currently) not coded to take advantage of HSA, this is why I was speaking theoretically.

The reason I'm asking is because my main PC's AM2+ motherboard died and, if HSA could theoretically be beneficial, then I may want to go with an inexpensive FM2+ mobo + A6-7400k bundle (Microcenter) vs an inexpensive LGA1155 motherboard, Pentium G630, and Radeon 4670.