For the most part there isn't much to see with this driver except for the fact Lost Planet 2 managed to see some good gains in certain areas - especially when looking at 1680 x 1050. Outside of that, though, there's really nothing else much here.
If there was ever a driver that was released to just give you the impression that AMD are releasing particular versions of the driver to keep up with the whole "WHQL Driver Monthly" thing, then this is one of them.
If you're going to jump on the BF3 Beta bandwagon which is now officially open to everyone, you're going to get yourself the new preview driver as it has a couple of extra optimizations for the game. It also should carry any of the improvements we see here today alongside the fixes that are on offer.
The 11.9 is a good driver set, but the problem is it's made almost completely redundant with the 11.10 beta that has shown up. If you prefer to stick to the WHQL side of things, sure, make the jump. If you want to get the best AMD driver available at the moment, especially when it comes to BF3, then just skip this one and go straight for the 11.10.
To be honest, half of you have probably already done that anyway. So, it's time to get back to the BF3 beta and own some noobs .or at least try.