High Quality AA and AF
Our high quality tests let us separate the men from the boys and the ladies from the girls. If the cards weren't struggling before they will start to now.
Far Cry 2
While we see a good gain that equates to 30%, the performance numbers we're seeing aren't enough to let us play the game at these settings.
World In Conflict
We see a slight bump in the minimum department, but the average has shot up 10%. Like Far Cry 2, we can't play with these settings, but we're pretty close. Ease off slightly on the AA and drop the AF and you're still going to have a great looking game that will run smoothly.
Left 4 Dead
Finally we leave with L4D that sees another good 10%+ increase; there's a fair bit of power there with the HD 4890 when we start increasing the clock rates.