Qualcomm Technologies at its 4G/5G Summit in Hong Kong yesterday unveiled three new Snapdragon SoCs – Snapdragon 653, 626 and 427. As evident by the name, these chipsets are minor upgrade to the Snapdragon 652, 625 and 425. The Snapdragon 653 and 626 are meant for mid-range smartphones and tablets while Snapdragon 427 is meant for high-volume smartphones and tablets.
The new SoCs are meant to bring in network flexibility and it will be easier for OEMs to implement these chipsets due to similar compatibility requirements. Other than this, Qualcomm has also introduced dual-camera support to all the three SoCs. Up till now, the dual-camera support was only limited to Snapdragon 800 family. All the three SoCs come with Hexagon DSP, Snapdragon X9 LTE modem, Enhanced Voice Services for ultra HD VoLTE calls and they also support Quick Charge 3.0. 
The new modem integration means the these chipsets will support LTE-A carrier aggregation (2x20MHz) with up to 300Mbps peak download speeds (LTE Cat. 7) and 150Mbps peak upload speeds (LTE Cat. 13), as well as 64-QAM modulation in the uplink.
Introducing the new SoCs, Alex Katouzian, Senior Vice President of Product Management, Qualcomm Technologies, said, “It has always been Qualcomm Technologies’ strategy to introduce industry-leading features first at the premium Snapdragon 800 tier design point, and then scale these features into our other Snapdragon products. A great example of this strategy is the use of dual camera for capturing high quality photos that now range across our portfolio, including our 400 series mobile solution. Doing this allows our customers and smartphone developers to reach a broad subscriber base with advanced features and great end-user experiences.” (Source: NDTV Gadgets)
As mentioned before, these chipsets are minor upgrades. To be precise, the Snapdragon 653 is said to be about 10 percent faster in GPU performance and supports twice the addressable memory (upto 8GB) when compared to Snapdragon 652 SoC. Same as Snapdragon 653, the Snapdragon 626 can offer up to 10% higher performance and also comes with TruSignal Antenna boost technology which is touted to provide better signal quality in congested areas.
Lastly, Snapdragon 427 also provides better CPU and GPU performance with TruSignal antenna boost technology which makes it the first in the 400 series to come with this technology.
While the Snapdragon 653 and 626 will debut in devices coming late this year, the 427 will make entry only in Q1 2017.