Qualcomm Details Snapdragon 835 Processor

Qualcomm has detailed the Snapdragon 835 processor, which will power most of the leading Android smartphones this year. It's designed to grab information from the air at gigabit speeds and turn it into rich virtual and augmented reality experiences, according to several executives at a pre-CES briefing. Qualcomm SVP Keith Kressin said, "The 835 is going to be one of the key devices that propels the VR use case." PC Magazine reports: The hardest thing to understand about the Snapdragon 835, especially if you're thinking from a desktop CPU space, is how much Qualcomm has been prioritizing elements of the system-on-chip other than the CPU. This has been coming for years, and it can be tricky because it relies on firmware and the Android OS to properly distribute work to non-CPU components of the chip. During the briefing, it was striking how little Qualcomm talked about its Kryo 280 CPU, as compared to other components. Qualcomm tries to counter that by pointing out that this is the first 10nm mobile processor, which will improve efficiency, and also by saying the CPU is "tightly integrated" with other components using the new Symphony system manager, which operates automatically yet can be customized by application developers. This distributes work across the CPU, GPU, DSP, and more exotic components, letting the Snapdragon 835 work better than it would with CPU alone. How that will combine with Qualcomm's recent announcement that it will support Windows 10 on mobile PCs, including legacy Win32 apps, is yet to be seen. The Snapdragon 835 consumes 25 percent less power than the 820, according to Qualcomm. That means seven hours of 4K streaming video and two hours of VR gaming on a typical device, the company said. These new uses are really power hungry. Since Qualcomm can only do so much on power efficiency, it's also introducing Quick Charge 4, which supposedly charges a phone to five hours of use in five minutes and is USB-C power delivery compliant. The new Adreno 540 graphics chip improves 3D performance by 25 percent over the previous generation, Qualcomm said. But it also enables features like HDR10, which improves colors; foveated rendering, which most clearly renders what you're looking at rather than elements in the periphery of a scene; and low latency, which allows you to move your head smoothly around VR scenes. With one 32MP or two 16MP cameras running at the same time, the Snapdragon 835 supports various dual-camera functions. The Snapdragon 835 will feature the X16 modem, which Qualcomm announced earlier this year and will be able to boost LTE to gigabit speeds. The keys to gigabit LTE are triple 20MHz carrier aggregation with 256-QAM encoding and 4x4 MIMO antennas, said Qualcomm's senior director of marketing, Peter Carson. That's going to be first introduced with a Netgear hotspot in Australia this January, but Sprint and T-Mobile have said they're trying to assemble this set of technologies.

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