NVIDIA is pushing back the launches of its Kepler and Maxwell graphics architectures by roughly a year, rumors from the video card industry alleged on Friday. Originally slated for late 2011 and 2013, the respective 28 and 22/20 nanometer designs are now supposedly being moved to 2012 and 2014. The Digitimes sources believed that NVIDIA's fabrication partner TSMC wasn't producing good yields of 28nm parts and that Kepler wasn't running as quickly as hoped for.