GPGPU basically means that the GPU will also do the job of the CPU. Maybe the Wii U won't have a CPU at all, or the GPU might just be assisting the CPU (which means they can afford to put a lousier CPU in there).
ultima88's forum posts
Never mind... It seems to be a problem with Adobe Flash 11.3 (http://productforums.google.com/forum/#!topic/chrome/J8g7RSDo7E8). I tried the HTML5 player and the audio is fine.
When the volume on the video is maxed, the audio is distorted. If I decrease the volume on the player and increase it on my system, the audio is fine even at very high volumes, so it doesn't seem to be a problem with my speakers or earphones.
Video played with Progress, High quality setting, on Google Chrome 20.0.1132.57