The Taiwanese company Gigabyte Technology Co., Ltd, has developed a couple of Radeon based on 40-nm GPU Barts providing them with a proprietary cooling system WINDFORCE 3X (with three PWM-fan and three copper heat pipes).
GV-R687UD-1GD rev. 1.0 and rev. 2.0, have a blue PCB, 1120 stream processors, 256-bit memory interface,GPU with a clock speed equal to 900 MHz, 1 GB of GDDR5 memory clocked at 4200 MHz, support CrossFireX and Eyefinity configurations, and have five display screen outputs - two DVI , a gold-plated HDMI and two mini DisplayPort.
The main difference between the cards rev. 1.0 and rev. 2.0 is that the former uses Ultra Durable VGA (dual layer of copper, Japanese solid capacitors, inductors with ferrite cores, mosfet Low RDS), while the second use more advanced technology, Ultra Durable VGA + (double-layer copper Japanese solid capacitors, ferrite core chokes, Low RDS mosfet capacitors and NEC Proadlizer).
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