The highest Ive seen the GTX 460m my G73sw-3DE GPU temp is at 82c playing Crysis 2 in Ultra mode...other wise max setting on other games I tend to be on 76c.
running FurMark for about 30 mins load it up to 93c.
It idles about 56c - 62c on AC power. 43c on battery.
According to nVidia this is still safe temp cause the Fermi GPU was tested at 105c and was still running stable...didnt realy specify whats the max temps.
-ASUS ROG G73SW-3DE-
-Intel Core i7-2630QM Mobile Quad Processor
-Intel HM65 Express Chipset +ICH10
-17.3" 1920x1080 120Hz Anti-Glare Matte Screen
-nVidia GeForce GTX 460m 1.5GB GDDR5 VRAM
-nVidia 3D Vision Active Shutter Glasses
-Creative EAX Advanced HD 5.0
-THX TruStudio
-8GB DDR3 1333MHz RAM (Max 32GB)
-2x500 Seagate Momentous XT Hybrid HDD
-Blu-Ray 4x Burner
-Logitech Performance MX Darkfield Laser Mice
-Microsoft Windows 7 Ultimate
-XBOX360, PS3, Wii