CPU, GPU And Memory
The Nexus 4 is built around a Snapdragon S4 Pro, one of the most powerful processors in Qualcomm's S4 line of mobile-device SoCs. The chip contains four ARMv7-based Krait processor cores supporting clock rates as high as 1.7GHz and has 2 GB of system memory to work with. Inside iPhone 5, of course, is Apple's all-new A6, an ARM A9-based quad-core SoC that runs at 1.3GHz. iPhone 5 packs 1 GB of system RAM.
For graphics, the Snapdragon S4 includes an Adreno 320, the successor to Qualcomm's Adreno 225 that it says delivers up to four times the performance and is optimized for HTML5 and 3-D software. The A6 packs a PowerVR that Apple says doubles application and graphics performance of the A5 in iPhone 4. Both can capture 1080p video and play back at full frame rates. Apple offers the iPhone 5 with 16, 32 or 64 GB of memory for app and data storage. The Nexus 4 comes with 8 GB or 16 GB. Neither device can be expanded.