NVIDIA has today issued a press release showing off the fact that their all new “ultra-lower-power HD” Tegra processor will provide the muscle in Microsoft’s forthcoming Zune HD.

Below is a list of reasons why NVIDIA thinks the Tegra will help the Zune HD reign supreme:

• an HD video processor dedicated to HD video, providing unprecedented picture quality and ultra-smooth, vivid movie playback with low power consumption
• an ultra-low power graphics processor for a compelling and intuitive user interface
• NVIDIA nPower™ technology, which optimizes system power use and enables extended HD video and MP3 playback time

Will HD quality help the Zune HD oust Apple’s iPod touch? We’ll have to wait until the device’s September 15th release date to find out.