Which dual-core 1GHz ARM Cortex A9 system-on-a-chip rules the roost? It's probably too early to tell, but if you're looking for a preliminary verdict, AnandTech has benchmarked all three of them now. Texas Instruments' OMAP 4430, NVIDIA's Tegra 2 and Samsung's Exynos 4210 went head to head in a gauntlet of browser and graphical benchmarks, and it looks like the LG Optimus 3D's OMAP 4 came out on top, boasting minor but significant improvements practically across the board. Good news for the BlackBerry PlayBook, no? Oh, and if you're wondering why the iPhone 4 and Atrix 4G fall behind their older brethren in the image above, remember that they both have to render images at a higher screen resolution. More graphs at our source link below.