[EDIT]hmmm.....whats going on at AMD? (and history of 3Dfx Rampage)

[BoFox]

Yes, it looks like Polaris runs hot which is very bad news.  AMD GPUs have always run hot, for the past several generations anyhow.  I would have thought that the new node would have helped with that, but apparently not.

Hell, with that aluminum heatsink, it's like having a stock Intel heatsink and trying to overclock the thing to 4.5GHz. 

Those who really want more performance from overclocking should just avoid the stock cooler like the plague and wait for custom coolers by AIB's (especially if there's a version that allows for increased voltage).  Temperatures would drop by maybe 25-30C, reducing power leakage by quite a bit (perhaps 20W or more), and allow for much higher overclocking (perhaps as high as 1500MHz, but I think more than 1450MHz would be hard to accomplish with just 1 6-pin PCIE power connector.  By the time MSI or Gigabyte designs a board with an 8-pin PCIE power plug, AMD would probably have launched Vega by then, heh.