Aluveitie

I don't think I need to remind you that this is specific to my chip and yours might do better or worse with it :D The new cards behave quite differently than the Vegas, AMD pumped a lot of unnecessary voltage through the VII and you could safe a lot of power without sacrificing performance on it. The 6900 XT came far better tuned, there was almost no room to undervolt without limiting the maximum frequency with my chip. My SPPT is on the more aggressive side since mine is in an ITX case with just 3 120mm rads and a SFX PSU. If I remember correctly the max frequency is 2200 MHz which results in a 5-7% performance hit but reduces the power draw to around 220-250W. At those settings the card is very efficient, still slightly faster than a 6800 XT but I rarely see the GPU hitting 55 C under load.