The only real advantage that the HIS 7850 iPower IceQ Turbo 4GB has is its re-worked PCB and power design, which allows overclockers to push the card a little harder. With our best overclock in place the 7850 iPower IceQ Turbo 4GB Crossfire configuration was on average 45% faster than the standard 7850 Crossfire cards...



Link: Legion Hardware