Nvidia has taken the wraps off their latest flagship PC gaming graphics cards today, now known as the GeForce GTX 980 and GeForce GTX 970. In the high-end PC graphics arena, there are halo products that are built to lay down the gauntlet for the competition. And of course, Nvidia and AMD have been in a perpetual slugfest for many years, in an effort to claim the biggest, baddest 3D graphics engine on the planet. Sometimes graphics cards even push the boundaries of stable system power capacity with their light-dimming, pixel crunching, horsepower; though even in this juggernaught product segment, there are certain efforts made toward efficient computing. And that’s what these new graphics cards from Nvidia, based on their latest Maxwell GPU architecture, are all about.