Temperature results
We're including FurMark results with a twist. The GTX 580's driver and monitoring chips disable v1.8.2 and cause it to load the GPU incorrectly. We switched back to v1.7.0 and ran the test; this version isn't yet on the 'banned' list for the ForceWare 262.99 driver. Please bear in mind that only the GTX 580 runs FurMark v1.7.0 - all others run the newer v1.8.2.
Nothing much to separate the high-end GTX cards here. GTX 580 continues the near-100°C theme set by the GeForce GTX 480.