BioShock Infinite on NVIDIA GeForce GT 630M 2GB HD

Oh the game is so great, I was surprised it ran so well on these specs, Ultra gets very clunky with only 15-19 fps, and very high kind of lags too. But on High in runs perfecting though sometimes the frame rate might drop. Operating System - Microsoft Windows 8 Pro 64-bit CPU - Intel Core i5 2450M @ 2.50GHz