Guess you all know more than the professionals at Tomshardware and Anandtech. It takes very little GPU power to run a 1080p resolution with a 2d static picture. It takes a lot of GPU power to run high frame rates with full details on every pixel where the scene is also rendering 3D and changing is less than a second. That is why there are different GPU's that cost more than others. This card, the 650TI, cannot run a fully detailed, fully accelerated 1080P 3D game at full details. Some of the fine details that make up the scenes in a frame have to be turned off because the card does not have the processing power, other wise the frame rate is slowed down. Resolution output is entirely different from what a card can do with that resolution. Just like some cameras shoot 1080p at 24 frames, others also shoot at 30 frames and even 60 frames and those capturing the same detail at 30 and 60 frames are pushing more MB/sec output to do it and require faster memory to keep up with the recording task. well, this care is just not up to the full task of playing back all of the detail that is built into the game at the fast, highest levels.
I really cannot make it any simpler than this. If this is the card you want, fine, buy it, but don't delude your self into thinking your $160 card (say Mustang GT) will beat a GTX 670 (Ferrari).