The Qualcomm Snapdragon S4 Pro APQ8064A is a high-end SoC for Android smartphones and tablets, which was introduced in 2012. The chip integrates 4 CPU cores, which are based on the ARMv7-compatible, but by Qualcomm designed Krait architecture. This provides a much higher per-MHz performance than Cortex-A9 chips such as Nvidia's Tegra 3 or the Exynos 4412 from Samsung, but does not quite reach the performance of the Cortex-A15 (for example in the Tegra 4). The memory is accessed via 2 x 32 bit LPDDR2 at up to 533 MHz, which offers a bandwidth of 8.5 GB/s.
The APQ8064A integrates an Adreno 320 GPU by IMG, which clocks at 400 MHz and offers a performance of over 50 GFLOPS. Thus, the graphics unit is one of the fastest in the SoC market (early 2013) and is only surpassed by a few models such as the PowerVR SGX554MP4 in the iPad 4. Therefore, even the most demanding 3D games in high resolutions will run fluently (Sony Xperia Z with 1080p display).
Thanks to a dedicated decoder, the SoC can accelerate 1080p video playback up to a frame rate of 30 fps. 3D photos are possible up to a resolution of 20 megapixels. In addition, the chip also integrates a wireless module with Bluetooth 4.0 and WLAN 802.11ac/a/b/g/n. Produced by TSMC in 28 nm (LP), the power consumption should be around 4 watts (estimated, depending on the clock speed).
The Apple A6 is a dual-core SoC found in the iPhone 5 with ARM compatible CPU cores. The A6 was developed by Apple and supports the extended ARMv7s instruction set. The clock rate of the CPU is between 800 to 1200 MHz depending on the CPU load. The integrated GPU is a PowerVR SGX543MP3 at 266 MHz.