Hybrid Crossfire Witchcraft?

Hey everybody.

After watching Logan's benchmarks of the AMD Richland A10-6800K, I did some more investigating. 

After that, I read up that the A10 can do this thing called "Hybid Crossfire". (http://www.tomshardware.com/reviews/a10-6700-a10-6800k-richland-review,3528-2.html

It works with the onboard GPU and the discrete GPU to boost preformance. 

Is it worth it to buy a Radeon HD 6570 to do Hybrid Crossfire, or get a Radeon HD 7770?

Thanks guys!

The cards are so cheap now, you could go a few tiers higher than the 7770. Don't bother crossfiring your APU.

Thanks man. Is the imbedded GPU very good?