Arctic slipped in the latest member in its reputed Accelero Twin Turbo series of graphics card coolers, the Accelero Twin Turbo 6990. As the name suggests, it is tailored for the top of the line AMD Radeon HD 6990 dual-GPU graphics card. The cooler is designed to cool everything on the obverse side of the PCB, that includes the two AMD Cayman GPUs, the VRM, and the bridge chip. The cooler's design consists of two main heat-pipe fed heatsinks over the two GPUs cooled by 120 mm fans, which are connected by a common base. The main heatsinks maintain contact with the GPUs through cutouts in this base, while other components pass heat on to the base. There is a third central heatsink that relies on the air-flow from the two ventilated heatsinks. In all, the heatsink measures 300 (L) x 138 (W) x 50 (H) mm, and weighs 820 g. It doesn't replace the AMD reference backplate, so PCB bending is checked that way. Backed by a 6-year warranty, the Accelero Twin Turbo 6990 is priced at US $150.