Qualcomm Snapdragon 400 APQ8028 vs Rockchip RK3288 vs Qualcomm Snapdragon S4 Plus MSM8930

Qualcomm Snapdragon 400 APQ8028

The Qualcomm Snapdragon 400 APQ8028 is an entry-level ARM-SoC for Android smartphones and tablets. It offers four Cortex-A7 cores clocked at up to 1.6 GHz (Quad-Core) as well as an Adreno 305 graphics card at 450 MHz. The chip is manufactured in 28 nm LP at TSMC.

Rockchip RK3288

The Rockchip RK3288 is a mid-range ARM SoC for Android and Chrome OS mobile systems. It integrates four Cortex-A12 cores clocked at up to 1.8 GHz. ARM calls these cores Cortex-A17 due to them having very similar performance levels. The SoC includes an ARM Mali-T760 MP4 (also called Mali-T764) GPU clocked at 600 MHz and a dual-channel DDR3, DDR3L, LPDDR2, LPDDR3 memory controller.

The ARM Cortex-A12 is the successor to the Cortex-A9 and is based on a 32 Bit ARMv7-A microarchitecture. A single A12 core should be roughly 40 % more powerful than an A9 core according to ARM.

The integrated video engine supports encoding of H.264, VP8, and MVC videos up to 1080p. Decoding is supported for videos up to 4K H.264 and 10 Bit H.265.

The chip is manufactured under a 28 nm HKMG process.

Qualcomm Snapdragon S4 Plus MSM8930

The Qualcomm MSM8930 (Snapdragon S4 Plus series) is an ARM based high-end smartphone SoC in 2012. It contains two Krait (ARMv7) CPU cores at up to 1.2 GHz, a Adreno 305 GPU, a single channel LPDDR2 memory controller and LTE radio elements.  The chip is produced in 28nm LP (low power process) at TSMC. Compared to the MSM8960, the 8930 is lower clocked, offers only a single channel memory controller, but has a faster GPU.

The Krait cores should offer a slightly better performance as the standard Cortex-A9 cores and are compatible to the NEON SIMD extensions.