80-90 even 100C... That is normal

With those cheap heatsink, ATi HD3850, 3870, and nVidia 8800GT are very easy heat up your case.
But, we need to understand heat is not equal to power consumption.
HD3870 produces so much heat just like a 2900XT. Many people wonder the power usage may be same as 2900XT.
Anyways, lets see who use more power under idle and load.



This is the system running without a video card under windows xp






8800GT single card

idle





load under 3Dmark06 Game test 2





ATi HD3850 Power test


HD3850 Single Card





HD3850 Single Card load under 3Dmark06 Game test 2






HD3850 Crossfire idle





HD3850 Crossfire load under 3Dmark06 Game 2





ATi HD3870 Power test

HD3870 Single card idle




HD3870 Single Card load under 3Dmark06 Game test 2





HD3870 Crossfire idle




HD3870 Crossfire load under 3Dmark06 Game 2





Table