Elite Bastards posted a review on the XFX Radeon HD 4770 512MB video card

Its design and cooler may be customised compared to the other Radeon HD 4770 designs we've seen in retail thus far, but XFX's offering otherwise sticks to the standard clock speeds, featuring the usual 750MHz core and 800MHz GGDR5 memory clocks we'd expect to see from such a part.

Unlike the small cooler we saw on HIS and Sapphire's offerings, XFX's dual-slot affair covers almost the entire board (albeit not all of the card's memory modules) while also looking to exhaust hot air more efficiently out of the rear of the system chassis. That aside, as per other cards XFX's offering is powered by a solitary six-pin PCI Express power connector, while the PCB also features two CrossFire inter-GPU connectors.

XFX Radeon HD 4770 512MB video card review