Is this chart correct? Do not need to install a bridge to enable crossfire for two 7750s cards; last time I saw that was in the entrance-level low grade 5400/5500 series cards.
Seems awfully strange that a 7750 as primary won't need a bridge with a 7770 or 7750 as the secondary, but if you have a 7770 you need a bridge whether 7770 or 7750..Probably because the 7750 doesn't push enough bandwidth to warrant needing that bridge.