CPU, GPU And Memory
The Galaxy S4 devices sold in the U.S. will be built around the Qualcomm Snapdragon 600 system-on-chip, which contains four 1.9GHz ARMv7 cores. Some outlets erroneously reported the phone having Samsung's eight-core Exynos 5. Elsewhere it might, but not here.
Last year's Galaxy S3 did have a Samsung SoC; it came equipped with the Exynos 4412 quad-core SoC running at 1.4GHz, which contains four ARM Cortex A9 application cores plus another four ARM Mali-400 GPUs for graphics. For graphics, the Snapdragon SoC wields 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 Galaxy S4 has 2 GB of DDR3 memory, doubling the Galaxy S3's 1-GB RAM capacity. Both are available with 16 GB, 32 GB or 64 GB of app and data storage, and both can add another 64 GB via microSD.