Sapphire is initially releasing the Radeon HD 7770 is two different flavors, which would be one based on the reference numbers and a very desirable over-clocked model. We were fortunate to receive the overclocked model which is clocked at 1150MHz on the Core and 1250MHz on the Memory. This is 150MHz and 125MHz overclocks respectively.
This version of the 7770 uses a single fan solution to keep everything cool and running efficiently. This is more than enough as the typical board power of 80W. The fan used is a slow spinning 92mm unit. It blows air over a solid aluminum heat sink setup which also consists of dual copper heat pipes.
The plastic shroud that covers the entirety of the card giving the card that higher-end look. And because of the shroud the card takes up two slots on the motherboard.
The user has several ways to give a video connection to their monitor. There are two mini-Displayport, one DVI and one HDMI connector. Because of the APP Acceleration feature the video enhancement is great no matter the task as hand, even internet browsing.
AMD does recommend atleast a 450W power supply to power this card through its single 6-pin connector.