For 1680 x 1050 users, this is a resolution that has become one of the most common wide screen resolutions due to the aggressive pricing associated with monitors that carry support for the resolution. The HD 5770 is a great choice if you've got the money. If you really want to crank up the detail you might even find yourself looking at a HD 5800 series card.
If you don't want to blow the bank, though, the HD 5750 does a good job at the resolution. Having already checked out a few models, we'll be seeing how the GIGABYTE version stands up. With a pretty nice looking fan we hope that it's able to put out impressive numbers in the cooling department along with some nice numbers at 1680 x 1050.