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)
The MediaTek MT8163 V/A is an ARM based entry-level to mid-range SoC for (Android based) tablets. It offers four ARM Cortex-A53 processor cores (quad-core) that are clocked with up to 1.5 GHz. Furthermore, an ARM Mali-T720 MP2 graphics card clocked at 600 MHz, a DDR3x32 1600Mbps memory controller, Bluetooth 4.0, 802.11 b/g/n, GPS and FM are integrated in the SoC.
The similar named MediaTek MT8163 V/B is the slower clocked version, with a CPU clock o up to 1.3 GHz (-6%) and GPU of up to 520 MHz (-13%).
The performance is situated in the entry level of 2015 and often similar to the Kirin 910T (see benchmark below).
The HiSilicon Kirin 620 is an ARM-based octa core SoC for mid-range smartphones. It was announced at the end of 2014 and features eight ARM Cortex-A53 cores at 1.2 GHz (max.). Furthermore, the processor integrates a ARM Mali-450 MP4 graphics card, an LPDDR3 memory controller, an LTE Cat.4 modem, 802.11n WiFi and Bluetooth 4.0. The chip is manufactured in 28nm and relatively power efficient.
Mali-400 MP4, Single Channel DDR3 Memory Controller
DDR3x32 memory controller 1600Mbps, T720 MP2@520MHz, internal Display up to 1366x768, HMID up to 1080p, H.265 1080p video decode, 13MP image signal processor, WiFi 802.11 a/b/g/n, embedded GPS module, Bluetooth 4.0, FM radio support, ARM TrustZone
Average Benchmarks MediaTek MT8163 V/A 1.5 GHz → 0%n=
Average Benchmarks HiSilicon Kirin 620 → 0%n=
- Range of benchmark values for this graphics card - Average benchmark values for this graphics card * Smaller numbers mean a higher performance 1 This benchmark is not used for the average calculation
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