HIS Radeon HD 7750 IceQ X Turbo 1 GB @ techPowerUp
 

The HIS HD 7750 IceQ X Turbo is a custom design, overclocked HD 7750. A separate 6-pin PCI-Express power connector has been added to the card, which improves power delivery and might have an effect on overclocking potential. In our testing we saw over 25% real life performance gain from overclocking.

http://www.techpowerup.com/reviews/HIS/HD_7750_IceQ_X/