Not too good. 35 on the CPU and 45 on the graphics card idling. Temps get up to around 60 and 70 respectively.
Problem is the 270 exhausts all of its hot air into the case, which is then sucked in by the CPU cooler. If I had a blower card that ejected all of its air outside the case overall temps would go down, even if the cooling on the GPU wasn't as good.
Sometimes the only way to make people aware of a fire is to set the whole town ablaze.