When we first laid our hands on LG's Optimus 4X at Mobile World Congress, we were left with mixed impressions, which was due in part to its pre-release software. While the phone tore through web pages and pinch-to-zoom actions with 1080p video, it struggled to keep pace with LG's own custom UI -- an unfortunate echo of our experience with the Optimus 2X. Now, LG's latest superphone has been put through the rigors of a few popular benchmark tests, which confirm there's plenty of quad-core, Tegra 3 potential inside this beast. While the Opt
