Results: BioShock Infinite
You need little more than a mid-range graphics card to play BioShock Infinite at its Ultra preset at 1920x1080.
The GeForce GTX 750 Ti ties Nvidia's GeForce GTX 650 Ti Boost in our average frame rate measurement, although it achieves a significantly higher minimum, too.
The Unreal engine that powers BioShock is well-optimized, yielding low frame time variance figures compared to other games.
I'm pretty sure you meant to type "video cards" on page one there. Cheers.
Don't take this as fact, but the drivers look newer for the Zotac card than the others, possibly just a bug with the older drivers? The cards are advertised as having 640 shaders anyway.
Also weird, the GPU-Z screenshot is taken with Windows 8, whereas the Gigabyte and MSI cards are on Windows 7. The mystery continues...