We first caught wind of an upcoming dual-GPU Hawaii graphics card this time last month when AMD teased us with its top-secret "Two is Better Than One" campaign. Although AMD didn't actually reveal anything, it was clearly planning a successor to the Radeon HD 7990, which is essentially two Tahiti dies on a single board, or in other words a pair of slightly underclocked Radeon HD 7970 GHz Edition GPUs.

Back when we tested the 7990 in April 2013, it was a formidable rival for the GeForce GTX Titan. The biggest problem the card faced was AMD's frame latency performance, which was quite poor at the time, especially compared to a single-GPU solution like the Titan. The 7990 also suffered from enormous power consumption figures compared to the Titan, as we found it pulled almost 40% more power.