AMD’s long-rumored “Nvidia Killer” graphics card may be on track to become the most powerful GPU ever released. A purported specifications list for the card has been leaked and seems to corroborate previous rumors about the Navi 21 GPU. More than that though, it suggests this card will have more memory bandwidth than most workstation cards, combining the fastest memory in the world with an enormous bus. Following the launch of AMD’s RX 5700 XT GPU in 2019, AMD fans have been awaiting a high-end solution based on the same RDNA architecture. AMD has made statements to suggest it plans to be competitive throughout the entire GPU price/performance spectrum, with CEO Lisa Su promising a high-end RDNA GPU before the end of 2020. Other rumors in December suggested the Navi 21 GPU at the heart of this alleged “Nvidia Killer” card would be twice the physical size, and close to twice the performance of the 5700 XT. While that is likely a bit of a stretch, even for a monstrous top-tier card, the specs that have appeared in this latest leak suggest it could still be a very capable card. Although unnamed, the “D32310/15” GPU configuration leaked in an SK…