Qualcomm Snapdragon 765G vs Qualcomm Snapdragon 660

Qualcomm Snapdragon 765G

The Qualcomm Snapdragon 765G (SD765G Mobile Platform) is a fast mid-range ARM-based SoC largely found on Android tablets and smartphones. It integrates eight cores (octa-core, called Kryo 475) divided into two clusters. A fast performance cluster contains two ARM Cortex-A76 cores clocked at up to 2.4 GHz (prime core) and 2.2 GHz (gold core) and a power efficiency cluster with six small ARM Cortex-A55 cores at up to 1.8 GHz. Depending on the workload only single clusters or all cores can run at different clock speeds.

Compared to the normal Snapdragon 765, the 765G is optimized for gaming. This means the graphics card is higher clocked and the chip also supports additional software features (Snapdragon Elite Gaming like Game Smoother, Game Fast Loader and Game Network Latency Manager).

The processor performance is quite comparable to the old Snapdragon 730G. Only the single core performance can be slightly better, thanks to the higher clocked prime core (+200 MHz = 9% higher).

The chip is one of the first SoCs that integrate a 5G modem. It is called Snapdragon X52 and supports speeds of up to 3.7 / 1.6 Mbps (down- and upload) and mmWave and Sub-6.

The integrated Adreno 620 is also higher clocked compared to the one in the normal 765 and should result in 10% higher performance (according to QC).

The integrated AI engine uses the GPU, CPU and dedicated cores to reach a theoretical maximum performance of 5.5 TOPS.

The processor is manufactured in the modern and energy efficient 7nm EUV process at Samsung. 

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.