How does the latest Samsung flagship smartphone ~ Samsung Galaxy S4 GT-I9500 performs? Galaxy S4 I9500 is powered by Samsung own SOC Exynos 5 Octa which has 1.6 quad-core ARM Cortex-A15 and 1.2 GHz quad-core ARM Cortex-A7. And using PowerVR SGX544MP3 GPU. Does ARM big.LITTLE heterogeneous architecture really help to enhance Galaxy S4 speed and battery life? Let’s these synthetic benchmarks tell you…