In what's sure to be a hit with hardware nerds, AnandTech has run a suite of benchmarks on 27 different devices. The line-up is dominated by Android, but also includes the iPhone 3GS (both on 4.1 and 4.2.1), iPhone 4, iPad, Blackberry Torch, and the WP7-powered HTC Surround. The results? Broadly speaking, Android comes out looking damn good. As for the dual cores - well, as you'd expect, they performed even better.
The hardware was all over the map, including dual-core devices such as the TI OMAP 4430-powered LG Optimus 3D, the Tegra 2-powered Optimus 2X, and the Exynos 4210-powered Samsung Galaxy S II, all the way through today's run of the mill (single core) high(er)-end devices packing A4's, Hummingbirds, Snapdragons and beyond.