WINDFORCE COOLING SYSTEM
The WINDFORCE cooling system features two 90mm unique blade fans, alternate spinning, composite copper heat pipe directly touches the GPU and 3D active fans, which together provide high efficiency heat dissipation.
ALTERNATE SPINNING
The GIGABYTE “Alternate Spinning” is the only solution that can solve the turbulent airflow of adjacent fans. Since the adjacent fans rotate in the same direction, the airflow direction is opposite between the fans, which will cause turbulent airflow and reduce heat dissipation efficiency. GIGABYTE turns the adjacent fans in the opposite direction, so that the airflow direction between the two fans is the same, reducing the turbulence and enhancing the airflow pressure.
UNIQUE BLADE FAN
The airflow is spilt by the triangular fan edge, and guided smoothly through the 3D stripe curve on the fan surface, effectively enhancing the airflow.
Source : Gigabyte GeForce® GTX 1650 D6 WINDFORCE OC 4G (rev. 3.0)