We are running very similar setups (same monitors with crossfire). I'm trying to understand your comparison between "these drivers" and "12.6 drivers". Aren't these 12.6 beta drivers? The driver release version matches the previous 12.6 beta that I have installed. Is there something different that I'm missing?I can now vouch that two 7970s in crossfire KICK ALL SORTS OF ASS in eyefinity!!!!
I am running three samsung s27a750s @ 5760x1080 120hz with a sniper 3 mobo, 3770k ocd to 4.5ghz and crossfire is running like butter with these new drivers! So far I have tested BF3, Mafia II, & Crysis and its running as smooth as a single card
Take a look at my GPU usage in crysis with these drivers:
Now compare that to my GPU usage with crisis using the 12.6 drivers & cap1
Currently, I get scaling across 2 of my 3 cards in Skyrim and it's a little choppy still. Batman: AC run fricking fantastic on these drivers, utilizes all 3 cards and is running HD3D across 3 eyefinity monitors without missing a beat. It took me 6 months to get here, but damn is it pretty.