The 8X is powered by 1.5GHz Snapdragon S4. The venerable and powerful processor was plugged into many of last year's heavyweights. The 8X comes with 16 GB of storage and 1 GB of system RAM. Like all Windows Phones we've tested, the 8X's performance is buttery smooth. The only downside of the 8X's polycarbonate unibody is that it cannot accommodate expanded storage via SD card. The iPhone sports similar specs. Apple's homegrown A6 processor spins at 1.3GHz and keeps iOS 6 humming at warp speed. It's also backed by 1 GB of RAM. It comes in 16-, 32- and 64-GB storage flavors, but it's not expandable beyond that. There's no clear winner here; both phones power their respective operating systems without complaint.