Qualcomm seems to be working on a couple of new processors, as details for the Snapdragon 660, Snapdragon 630 and Snapdragon 635 have just surfaced. These are expected to be the company's mid-range processors, as their names are suggesting. The Snapdragon 630 and Snapdragon 635 SoCs are actually expected to be new iterations of the Snapdragon 625, its newer variants, while the Snapdragon 660 is expected to be somewhat more powerful than those two chips, read on.
This information comes from China, as it was leaked on Weibo (Chinese social network). The Snapdragon 630 and Snapdragon 635 will be equipped with eight Cortex-A53 cores, which means we're looking at an octa-core processor here. These two SoCs will probably come with support for LPDDR3 RAM, while 4G LTE Category 7 is also expected to be included here. These two SoCs will have a clock frequency of 2.0-2.2GHz, if rumors are accurate, and the Adreno 506 GPU will be included here for graphics performance as well. These are actually all characteristics of the Snapdragon 625 SoC, so it is possible that the final specs of the Snapdragon 630 and 635 will be a bit different, a bit more powerful.
The Snapdragon 660, as already mentioned, is expected to be somewhat more powerful than the Snapdragon 630 and Snapdragon 635. This processor will, allegedly, be manufactured using Samsung's 14nm LPP processor, and will also be an octa-core processor which will combine Cortex-A73 and Cortex-A53 cores. The Adreno 512 GPU will be a part of this package, and will support dual-channel LPDDR4X-1866 RAM. As far as internal storage is concerned, this SoC will offer support for UFS 2.1 storage, and main cameras of up to 24 megapixels. 4G LTE Cat. 10 support will be included here as well, and the same can be said for three carrier integration. This processor is expected to hit the market in September, when manufacturers will be able to utilize it, while OPPO, Vivo and Xiaomi are already rumored to be amongst those manufacturers. Please do take all this info with a grain of salt, as nothing has been confirmed just yet, and it is possible that the final spec sheet will look a bit different, it's quite probable actually, but we'll see.