A Closer Look
HIS is using three heatpipes and a copper base to provide cooling for the card.
The card requires a single 6-pin PCI-Express power connector. This configuration is good for up to 150 W of power draw.
All HD 7790/R7 260X cards use an NCP81022 controller specifically designed to handle the new dynamic clock algorithm in the Bonaire GPU. The controller supports I2C for monitoring and voltage control.
The GDDR5 memory chips are made by SK Hynix and carry the model number H5GQ4H24MFR-R2C. They are specified to run at 1375 MHz (5500 MHz GDDR5 effective).
AMD's Bonaire graphics processor is built on a 28 nm process at TSMC, Taiwan. It uses 2.08 billion transistors on a die size of 160 mm².