Rockchip RK3168 vs Broadcom BCM21664T vs HiSilicon Kirin 910T

Rockchip RK3168

The Rockchip RK3168 is a low-end ARM SoC designed primarily for smartphones. It integrates two Cortex-A9 CPU cores with NEON extension, a PowerVR SGX 540 graphics card (400 MHz) and a memory controller for low-power (LP-) DDR2/DDR3. The performance should be comparable to other similarly clocked Cortex-A9 SoCs such as the Samsung Exynos 4210. Thanks to its 28nm manufacturing, the RK3168 is relatively power efficient and should enable longer battery life.

Broadcom BCM21664T

The Broadcom BCM21664T is an ARM based entry-level SoC for smartphones that integrates two Cortex-A9 CPU cores clocked at up to 1.2 GHz and a HSPA+ modem with support for 21 Mbps HSDPA and 5.8 Mbps HSUPA. Furthermore, a VideoCore-IV GPU and a video decoder (H.264 1080p capable) and encoder (720p) are built into the SoC.

HiSilicon Kirin 910T

The HiSilicon Kirin 910T is an ARM based quad core SoC for Android smartphones and tablets. As HiSilicon is fully owned by Huawei, the chip is mostly used in Huawei models like the MediaPad X1, P6 S, MediaPad M1 and Honor 3C 4G). The SoC integrates four Cortex-A9 cores (at 1.8 GHz max.), a ARM Mali-450 MP4 GPU (at 533 MHz), a 32-bit single-channel LPDDR3-1600 memory controller (533 MHz) and a LTE Cat. 4 radio. The similar named HiSilicon Kirin 910 is a 200 MHz slower clocked (CPU) version.

At the time of announcement in mid 2014, the CPU performance of the Kirin910T is in the mid-range of smartphone and tablet SoCs. The power consumption is a bit higher than usual, as the CPU cores are rather high clocked.