Testing Participants

HIS Radeon HD 4770 512MB

The first graphics card to be discussed in this review comes from Hightech Information System Limited and is a new product called HIS Radeon HD 4770 512MB. I was given two identical cards for testing. They come in small crimson-and-black boxes designed in HIS’ traditional style.

Each box contains two adapters, a disc with drivers, an installation manual, and a sticker with HIS logo:

The card has an original appearance thanks to the black-and-silver casing of the non-reference cooling system:

The card measures 208x100x38mm and fits into any ATX system case, but its cooler will block the neighboring PCI slot.

There is nothing especially interesting on the reverse side of the HIS Radeon HD 4770.

The card is equipped with two DVI outputs and an S-Video output.

There are two MIO connectors for CrossFireX configurations and a single 6-pin additional power connector.

The purpose of the power connector is unclear because the Radeon HD 4770 should not need more than 55W, which can be covered by a PCI Express slot with its load capacity of 75W. A 450W power supply is recommended for a system with one Radeon HD 4770, and a 550W power supply should be used for a CrossFireX configuration built out of two such cards.

With the cooler removed, the card looks like that:

The power circuit follows a three-phase design.