Originally Posted by dip.bong
but are they any good??? can theye be oc'd??? silly question though....i'll check em out...thanks buddy
The 7750 is going to give you the best overclocking of the bunch most likely. The 550ti will be about the same, however it will put out more heat. The 6750 will be the best overclocking new card you can buy within the budget you specified, but is by no means a "good" card in the realm of enthusiasts, however if you don't need everything on maximum it is a decent card. You may be able to play with maximum settings at 720p and below for many games however.
Here's a quick list;
The Radeon HD 7750 performs more or less exactly the same as the 550ti, but uses much less power. So if you're looking at new cards, the 7750 is likely the best deal if you can spend $30 more. Used you are best of with a 6850 if you can find one used in your price point, otherwise the 550ti.