El Tigre said:
What games are you trying to play and at what resolution are you gaming at? The HD 4650 is not really good for gaming, even CF'ed. They will suffer from micro stuttering since they are old and low end cards too. It would be best to get a newer powerful card. Even a budget card such as the HD 7750 will outperform your CF setup.
Its not just bad performance, my setup used to play Skyrim on medium, now can barely do low. Its just frustrating to have sunk so much money in a new board, chip and RAM only to have worse performance.