So I have an Asus 5870. I tried my hand at overclocking this card from 850GPU to 900GPU and 1200Mem to 1300Mem. The memory OC is fine, however the GPU fails. I did this per an article on Tweaktown (http://www.tweaktown.com/articles/2948/sapphire_radeon_hd_5870_1gb_overclocking_tests/index.html) I ended up bringing it back to stock. One thing I noticed was that when you do any overclocking in the CCC the idle clocks increase from 157MHz GPU to 600MHz. (I think it was) This created more heat and obviously more power usage in 2D mode.
What ever everyone's experiences with OCing this card, or the 5850?
What ever everyone's experiences with OCing this card, or the 5850?