Qualcomm Snapdragon 400 MSM8928 vs Rockchip RK3066 1.5 GHz vs Qualcomm Snapdragon S4 Plus MSM8227

Qualcomm Snapdragon 400 MSM8928

The Qualcomm Snapdragon 400 MSM8928 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. Furthermore, a HSPA+/LTE radio is integrated in the SoC, which is manufactured in a 28-nanometer LP process.

Rockchip RK3066 1.5 GHz

The Rockchip RK3066 is a cheap ARM based SoC for Tablets and Smartphones. It integrates two ARM Cortex-A9 (ARMv7) CPU cores with NEON extensions, a ARM Mali-400MP4 (quad-core clocked at 250 MHz) graphics card and a video de- and encoder as main components. The integrated memory controller supports a maximum of 2 GB DDR1, DDR2 or DDR3 memory.

The CPU cores can be clocked up to 1.6 GHz depending on the cooling solution of the tablet / smartphone.

Additional Features according to Wikipedia

• VPU (Video Processing Unit) Multi-Media Processor supporting 1080p image and video decoding
• HDMI 1.4 Interface
• 2-channels TFT LCD Interface with 5 layers and 3D Display (1920×1080 Maximum Display Size)
• USB 2.0 Interface
• SD/MMC Interface

Qualcomm Snapdragon S4 Plus MSM8227

The Qualcomm Snapdragon S4 MSM8277 is a mid-range SoC for smartphones and tablets (mostly Android based). It contains two Krait (improved ARM Cortex-A9) CPU cores at 1.0 GHz and a Adreno 305 graphics card. A memory controller and radio elements (excluding LTE) are also included. The chip is produced in 28nm LP process at TSMC.