UNISOC T8200 (T765) vs Qualcomm Snapdragon 660

UNISOC T8200 (T765)

The UniSoc T8200 (former UniSoc T765) is a mid-range SoC with 8 processor cores in two clusters. The two large ARM Cortex-A76 cores are clocked at up to 2.3 GHz. The six smaller cores run at up to 2.1 GHz.

The integrated memory controller supports LPDDR4/4X with up to 2133 MHz (2x 16 bit). The integrated ISP supports a camera up to 108 MPixel. The integrated graphics card is an ARM Mali-G57 MC2 (2 cores) is used. The built-in 5G modem supports TDD+FDD CA in the sub-6GHz spectrum with 130 MHz bandwidth.

The chip is manufactured using the somewhat older 6nm process (EUV at TSMC).

Qualcomm Snapdragon 660

The Qualcomm Snapdragon 660 (SD660) is a fast mid-range ARM-based SoC largely found on Android tablets and smartphones. Announced in mid 2017, the SD660 is the successor to the Snapdragon 625. It features 8 Kryo 260 cores (custom design, 64-Bit capable) that are divided in two clusters. A fast cluster of four cores with up to 2.2 GHz and a power saving efficiency cluster with up to 1.8 GHz. Both clusters can also used together.

In addition to the 8 CPU cores, the SoC integrates a mid range Adreno 512 GPU with a LPDDR4 memory controller (dual-channel 1866 MHz)  and supports Wi-Fi (802.11ac + MIMO, max. 867 Mbps), Bluetooth 5, and LTE (X12 LTE modem with up to 600 Mbps download and 150 Mbps upload).

Performance

In Benchmarks of the Oppo R11, the CPU part of the Snapdragon SD660 performs between former high end Socs like the Snapdragon 821 in the Pixel XL and the Snapdragon 835. The graphics performance is however much lower, as the Adreno 512 is only a slight upgrade of the older Adreno 510 (due to the higher clock speed).

CPU

The Snapdragon 660 is based on a similar concept as ARM's big.LITTLE, which combines a low power CPU cluster (2x Kyro clocked at up to 1.8 GHz) and a performance CPU cluster (2x Kyro clocked at up to 2.2 GHz). The clock speed of each cluster can be individually adjusted (but not per core) and the lowest clock speed is 310 MHz (unverified).

Power Consumption

Thanks to the new 14 nm process, the energy efficiency has been improved noticeably compared to its 20 nm predecessors.