Samsung Exynos 7580 Octa vs Samsung Exynos 850 vs UNISOC SC9863A

Samsung Exynos 7580 Octa

The Samsung Exynos 7580 is a ARM based mid-range System-on-a-Chip (SoC) for smartphones and tablets. It was announced in 2015 in the Samsung Galaxy S5 Neo and offers eight 64 Bit Cortex-A53 cores clocked at up to 1.6 GHz. Furthermore, an ARM Mali-T720 MP2 graphics card (see for benchmarks) and a 2 x 32 Bit LPDDR3 memory controller (max. 14.9 GB/s with LPDDR3-1866) is integrated.

The Exynos 7580 is manufactured in 28 nm HKMG at Samsung.

Samsung Exynos 850

The Samsung Exynos 850 is a System on a Chip (SoC) for entry level smartphones (Android based). It was announced in May 2020 and the first device with it is the Samsung Galaxy A21s. The chip integrates a processor with 8 small ARM Cortex-A55 cores that clock with up to 2 GHz (octa core).

The multi threaded performance is quite good thanks to 8 cores, the single threaded performance suffers a bit from the small A55 cores, although the clock rate of up to 2 GHz can help a bit.

Furthermore, the SoC integrates a LTE modem (Cat.7 2CA up to 300 MBit/s download, Cat.13 2CA 150 MBit/s upload), a Wi-fi 5 modem (802.11ac), LPPDDR4x memory controller, eMMC 5.1 flash memory controller and a video engine for FHD 60fps encoding and decoding (H.265, H.264, VP9).

It is manufactured in the modern 8nm LPP process at Samsung and should offer a good power efficiency and therefore it is also suited for small smartphones.

UNISOC SC9863A

The Unisoc SC9863A (formerly Spreadtrum) is an entry level octa core SoC with 8 ARM Cortex-A55 cores in two clusters. One performance cluster with up to 1.6 GHz and a efficiency cluster with up to 1.2 GHz. The SoC also integrates an LTE modem (TDD-LTE/FDD-LTE/TD-SCDMA/WCDMA/GGE), a PowerVR IMG8322 /GE8322 graphics card and 1080p video support.