Performance

Here's what it all boils down to. The performance incentive is what will sell these cards before people actually need them (when DirectX 11 games are finally around). So far the performance number leaks are mostly sourced from AMD's own internal testing, both using an older driver in the press material given away on their September 10 events, and using newer press-grade drivers which are stable enough to conduct reviews on. Perhaps the same driver will be released as Catalyst 10.0, who knows.

Other leaks are mainly on a smaller scale, covering one or more (handful) applications. The performance numbers so far show this card to more or less stand on its claims. We definitely have a new "world's fastest GPU" title claimant here, with decent gaps between it and the GPU it is going to dethrone.

Temperatures

From Tweakers.net:
Idle, fan at 20%: 40°C
Idle, fan at 50%: 32°C
Idle, fan at 100%: 31°C
Load, fan at 20%: 91°C
Load, fan at 30%: 75°C
Load, fan at 50%: 58°C
Load, fan at 100%: 53°C

Idle with 20%, 50%, and 100% fan speeds:


Load with 20%, 30%, 100% fan speeds: