I was lucky enough to get my hands on the new
6600 radeon (not the xt).
It is such a nice improvement from my old card.
Idle temps are around 33C with passive cooling while using 4W on a dual monitor setup. (1080p)
On load, hits about 45C with 1200rpm on the fan, which is nice and quiet.
Getting a good 90fps in New World.
My old card hit 55C on idle at 1200rpm. So yeah... So much more efficient.