Sapphire Radeon HD 7750 or Club3D Radeon HD 6790, which one is better for gaming at 1680x1050? I don't care about 6790's need for 6-pin connector, I just need a straight answer to know which one is faster?
If you are talking price/performance ratio then the 7750 blows the 6790 out of the water. The 6790 uses about triple the wattage and has only slightly better performance. They both have their strong points, but I would go with the 7750. http://gpuboss.com/gpus/Radeon-HD-7750-vs-Radeon-HD-6790
I didn't include the 2 important points, I will probably never use mantle since I like DirectX more, and it's between 6790 and 7750 since I can get them for same price, used, 7770 is 20% more expensive on that site, and I can't afford that.
There are actually 2 versions of the 7750, the older 800mhz card or the 900mhz version though the latter needs a single 6 pin connection you can overclock it higher and it will touch 7770 perf. keep in mind that there is no guarantee if your card will be a good overclocker and the power draw will be much higher.