Gigabyte Radeon HD 6770 Silent Series (GV-R677SL-1GD)
The Gigabyte Radeon HD 6770 Silent Series is shipped in a large box that has a window for you to be able to see some of the card’s heatsink.
As usual, the back of the box is where you can find the product’s description, specs and system requirements. Included with the card are a power adapter (two PATA -> one 6-pin connector), a DVI->D-Sub adapter, a CrossFireX bridge, a disc with drivers and utilities, and an installation guide.
The card is manufactured in Taiwan and has a retail price of about $139. Its warranty lasts for 3 years.
The Gigabyte Radeon HD 6770 Silent Series is but slightly smaller than the above-discussed ASUS and features a fanless cooler, too.
It measures 278x172x42 millimeters and takes up 262 millimeters inside a system case. Besides a vent grid, there is a DVI connector, a DisplayPort and a gold-plated HDMI in its mounting bracket.
As opposed to the ASUS, the Gigabyte card offers one CrossFireX connector for building multi-GPU configurations.
It has a 6-pin power connector in its usual location.
The PCB of the Gigabyte Radeon HD 6770 Silent Series is longer (202 mm) than the ASUS card’s and looks kind of more serious.
Thanks to Gigabyte’s Ultra Durable technology, the card is colder, has higher overclocking potential and consumes less power than the reference Radeon HD 6770.
The GPU of the Radeon HD 6770 Silent Series is the same as we’ve just seen on the ASUS card except for the date of its manufacture.
The rest of the GPU’s characteristics, including its clock rate in 3D and 2D applications, are the same.
The card has GDDR5 memory chips from Hynix Semiconductor on both sides of the PCB:
The chips differ from those of the ASUS card’s and are marked as H5GQ2H24AFR T2C. Their rated clock rate is the same, though. The card’s memory clock rate is 4800 MHz, exactly as in AMD's official specs and 800 MHz higher than the ASUS card's.