NVIDIA GeForce GTX 590 Temperatures Power Consumption & Acoustics Linus Tech Tips
2012-02-03 159 Dailymotion
http://www.ncix.com/search/?categoryid=0&q=gtx+590
I compare it against what I believe are its closest competitors on the very high end, the Radeon HD 6990 and dual GTX 580 SLI.