Qualcomm Snapdragon 665 vs Qualcomm Snapdragon 732G vs Qualcomm Snapdragon 660

Qualcomm Snapdragon 665

The Qualcomm Snapdragon 665 (SM6125) is a fast mid-range ARM-based SoC largely found on Android tablets and smartphones. 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 GHz (Kryo 260 Gold - Cortex-A73 derivate) and a power saving efficiency cluster with up to 1.8 GHz (Kryo 260 Silver - Cortex A53 derivate). Both clusters can also be used together.

In addition to the 8 CPU cores, the SoC integrates a mid range Adreno 610 GPU with a LPDDR4 memory controller (dual-channel)  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).

Power Consumption

Thanks to the new 11 nm LPP process, the energy efficiency should be quite good.

Qualcomm Snapdragon 732G

The Qualcomm Snapdragon 732G (SD732G Mobile Platform) is a fast mid-range ARM-based SoC largely found on Android tablets and smartphones. It integrates eight cores (octa-core) divided into two clusters. A fast performance cluster contains two ARM Cortex-A76 cores clocked at up to 2.3 GHz 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 730G, the 732G offers a 100 MHz higher A76 CPU clock.

Compared to the normal Snapdragon 730, the 732G is optimized for gaming. This means the graphics card is higher clocked (also compared to the 730G, Qualcomm stateds 15% more performance) and the chip also offers optimized WiFi. The GPU also supports higher resolutions. Furthermore, the SoC is able to record videos in 720p with up to 960 fps.

The chip includes a range of other features like a fast X15 LTE radio (800 Mbits Cat 15 download, 150 Mbps Cat 13 upload), one of the first Wi-Fi 6 wireless radios (802.11ax), satellite positioning (GPS, QZSS, GLONASS, SBAS, Beidou, Galileo), USB-C 3.1, Spectra 350 ISP, Hexagon 688 DSP, H.265 4K30 video en- and decode, an LPDDR4X-3733 dual-channel memory controller and a Adreno 618 Grafikkarte.

The Snapdragon 732G is manufactured in the modern 8 nm 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.