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Nvidia has launched the third GPU based on its next-generation Kepler graphics architecture, the GeForce GTX 670, starting at US$399.

Engineered from the same DNA as the recently announced GTX 680, the GTX 670 outpaces the closest competitive product in gaming performance by upwards of 45%, while consuming approximately 18% less power, the vendor claimed.

The GTX 670 is built using Nvidia's 28nm Kepler architecture, as are the GTX 680 and dual-GPU GTX 690, which were introduced in March and April, respectively.

The Nvidia GeForce GTX 670 GPU is available now from the add-in card suppliers worldwide, including ASL, Asustek Computer, Colorful, Elitegroup Computer Systems (ECS), EVGA, Gainward, Galaxy, Gigabyte Technology, Innovision 3D, Jetway, Leadtek, Micro-Star International (MSI), Palit, Point of View, PNY, Sparkle and Zotac.