Guys, I presume you'd be interested in this bit of info about HD4870 cards, so just a pointer to it.. didn't know where to post so better here than opening new thread.. It seems that it's possible to force 2D clocks for GDDR5 memory in BIOS after all, and AVOID the flickering issue (which is well known to everyone by now, I believe). http://forums.techpowerup.com/showthread.php?p=1191319#post1191319 So far only one user reported it so it needs further confirmation, but he says that keeping 2D clocks for memory at 450MHz while 3D clocks are at 900MHz - there is no flickering, and temperatures/consumption in 2D is lowered. I'm thinking that it's maybe 2:1 ratio so for those overclocking it could be that it's not 450 2D/1000 3D but 500MHz 2D/1000MHz 3D (I'm only talking about memory clocks here). I'm just sending out the word for now, as I'm selling my card in 2 days and don't want to bother (or risk) with flashing just before buyer arrives, but I'll probably test these once I get new card later next week (I hope). Cya!