android Archive CPU Features gpu Must Read Processor qualcomm Smartphones Snapdragon Tech

Qualcomm Snapdragon 855: Everything you need to know

Qualcomm Snapdragon 855: Everything you need to know

The Snapdragon 855 is right here, and Qualcomm would actually slightly you name it a “Mobile Platform” than a processor. Promising to open the door to a brand new decade of 5G, Synthetic Intelligence, and Combined Actuality applied sciences like AR and VR, the flagship chipset cranks up the facility whereas paving the best way for form-factors past simply the smartphone.

Why is the Snapdragon 855 Cellular Platform so necessary? Past Qualcomm’s boasts about efficiency and energy effectivity, not to point out it ushering in 5G, the sheer undeniable fact that it’ll be seemingly ubiquitous in 2019 makes it an enormous deal.

Qualcomm’s ongoing spat with Apple might make it persona-non-grata within the iPhone proper now, however Android phone-makers are lining up to add some Snapdragon 855 to their flagships. We’re anticipating the chipset to energy the Samsung Galaxy S10 early within the new yr, and certain the Galaxy Word 10 afterward in 2019. OnePlus and LG will undoubtedly launch smartphones that use it, together with most different names, massive and never so massive.

Not all will essentially faucet into each hardware function Qualcomm is providing with its new Cellular Platform. In any case, as we’ve seen prior to now, there could be a gulf between what a Snapdragon can technically do, and what a smartphone constructed on that Snapdragon has the capabilities of by the point it hits cabinets. Nonetheless, a lot of what Qualcomm is discussing right now on the Snapdragon Summit 2018 – the place SlashGear is a visitor – could have relevance throughout the board.


With the primary business 5G networks anticipated to mild up within the US come early 2019, it’s no shock that the Snapdragon 855 has an enormous concentrate on fifth-generation mobile. In actuality, although, 5G will nonetheless be an choice, and whether or not it’s included can be down to particular person device-makers.

Each Snapdragon 855 could have the X24 Cat 20 modem built-in: beforehand, that was a discrete element. It tops out at 4G LTE – although it nonetheless manages up to 2 Gbps throughput, community relying – and is paired with 802.11ac (aka WiFi 6 underneath the brand new Wi-Fi Alliance nomenclature) for up to roughly 10 Gbps speeds, with eight×eight sounding and WPA3 safety. 802.11ay, or mmWave WiFi, can also be included, as is Bluetooth

If a telephone wants 5G, although, it’ll have the Snapdragon X50 modem added too. Though a separate half, Qualcomm nonetheless considers it falling inside the general Cellular Platform. Simply how helpful that can be – and the way ubiquitous in shops – will rely upon how briskly 5G networks roll out, and the speeds they obtain of their earliest iterations. Definitely, although all the main US carriers have 5G roadmaps, at first protection goes to be the exception and never the rule. That, in fact, is why having the Snapdragon X24 onboard is so essential: Gigabit LTE isn’t going anyplace.

As for audio, Qualcomm is enhancing its TrueWireless Stereo Plus system for absolutely wi-fi earbuds. That ought to minimize latency between the left and proper earbuds, as well as to slicing energy consumption.

Efficiency and Gaming

A brand new Snapdragon means stronger compute, and that’s down to Qualcomm’s Kryo 485 CPU and Adreno 640 GPU. The previous guarantees up to 45-percent extra efficiency over the earlier Snapdragon 845. Whereas it’s an octa-core because the Snapdragon 845 was, Qualcomm has truly modified the structure significantly. There’s now a single Prime Core for max efficiency, operating at 2.84GHz, after which three Efficiency Cores every operating at 2.42GHz. Then there are 4 Effectivity Cores, every operating at 1.8GHz. Every of the eight cores has its personal L2 cache, they usually all share a single L3 cache. General, it provides the Snapdragon 855 extra flexibility to ship most energy when required.

As for the Adreno 640, there’s up to a 20-percent efficiency improve over the Snapdragon 845’s GPU. A brand new Cinema Core has help for options like H.265 and VP9 hardware-accelerated decoding, and the entire chip is up to 7x extra energy environment friendly than earlier than. Qualcomm has additionally enabled second-generation HDR help, for HDR10+ and Dolby Imaginative and prescient.

Probably extra necessary to players, in the meantime, are issues like 120 fps playback help. For video, there’s 8K 360-degree playback, along with Volumetric VR video playback. The Adreno 640 shall be in a position to drive up to a 4K HDR show on the smartphone itself, and up to two 4K HDR shows related externally.

To maximise the Snapdragon 855’s efficiency potential, Qualcomm is launching the Snapdragon Elite Gaming Platform. Successfully an umbrella time period for issues like cinematic colour grading in HDR – with help for over a billion colours – and filmic tone mapping, it’ll embrace Vulkan 1.1 graphic library help together with bodily based mostly rendering, or PBR.

That’s not one thing we’ve actually seen in cellular units earlier than, however it might make an enormous distinction to gaming on the go. At its core it’s a change to how animation textures are rendered, past a single reflection from a light-weight supply. As an alternative, recreation builders might be in a position to do physically-based rendering, identical to Hollywood animators can use, bearing in mind the traits of various supplies like stone, material, and certainly something on the periodic desk, after which calculating simply how mild would work together with these surfaces.

Theoretically, Qualcomm says, you might have completed all that in software program earlier than. Nevertheless determining the albedo shade, micro-surface textures, reflectivity, and porosity would have been extremely inefficient when it comes to energy consumption, with the chip-maker suggesting that it possible wouldn’t have hit 40 fps. In distinction, Adreno 640 has hardware help for it, and builders might be in a position to dip in with relative ease because the Unity four recreation engine additionally helps PBR.

Synthetic Intelligence

On-device AI is an enormous deal in cellular proper now, for quite a lot of causes. In fact there’s efficiency to think about: having on-device AI engine processing help may be quicker than sending knowledge to the cloud to be processed, then get the outcomes again. Nevertheless there’s additionally a robust privateness argument to be made, maintaining extra of a consumer’s knowledge on their telephone or pill.

For the Snapdragon 855, Qualcomm’s fourth-generation AI engine debuts. That mixes the Adreno GPU and Kryo 485 CPU with the chipset’s new Hexagon 690 processor, for as a lot as three-times the AI efficiency versus the previous Snapdragon 845.

The Hexagon 690 will get 4 of Qualcomm’s Hexagon Vector eXtensions (HVX), double the vector processing from earlier than, together with 4 scalar threads and a brand new design of Hexagon Tensor Accelerator (HTA). “We’ve been asked to add more of these capabilities to the device,” Cisco Cheng, evangelist for Snapdragon applied sciences, explains. “Hexagon is by far the most power-efficient core.”

There’s additionally native voice assistant help for issues just like the Google Assistant, Baidu’s DuerOS, and different voice-AI platforms. That’ll embrace devoted AI acceleration for echo cancellation and noise suppression, making it extra doubtless that your assistant can hear you throughout the room or with loud background noise. In reality, the Snapdragon 855 can do noise cancellation with only a single microphone, in contrast to conventional techniques which demand two or extra.

Digital camera and Computational Images

Smartphone consumers are led by digital camera performance, and so unsurprisingly most of the Snapdragon 855’s enhancements are round capturing higher photographs and video. On the coronary heart of that’s the new Spectra 380 ISP, which incorporates the world’s first pc imaginative and prescient (CV) ISP, or CV-ISP, for extra environment friendly computational images.

The Spectra 380 handles issues like the colour pipeline, noise discount, autofocus, autoexposure, and extra. Then, the pc imaginative and prescient pipeline collects colour info – with issues like HDR10+ help in video – and combines the 2. Beforehand, the CPU/GPU/Hexagon would’ve been answerable for the latter, however bringing it into the brand new Spectra has some vital efficiency benefits.

For a begin, there’s up to 4x energy financial savings over the previous technique, regardless of it additionally being quicker. There’s a 2x energy saving in 6DoF physique monitoring, and 4x energy financial savings for object detection and object monitoring. The Snapdragon 855 can report 4K video at 60fps with HDR whereas utilizing 3x much less energy than the previous 845 did when it was capturing 4K at 30fps. Qualcomm can now help issues like depth sensing at 60fps, too, and portrait mode in 4K HDR video, not simply stills. That would imply background defocus in video, but in addition eradicating the entire background and changing it with one thing else.

Hardware acceleration for HEIF file format encoding in addition to decoding has additionally been baked in. To date the most important push for HEIF has been on Apple’s current iPhone fashions, which reap the benefits of the truth that its compression delivers pictures roughly half the dimensions of JPEGs. Nevertheless that’s solely actually the tip of what HEIF can do.

For instance, HEIF encoding can retailer particulars on HDR colour, pc imaginative and prescient knowledge, the depth map generated when you took the shot, RAW knowledge, and even burst and animated photographs, all in a single file. On units with a number of cameras – within the method of, say, the LG V40, which has wide-angle, common, and telephoto lenses – every might seize a picture concurrently, after which all of these photographs might be mixed right into a single HEIF. Quite than sharing numerous photographs, one HEIF might carry all of them.

In fact, the receiving gadget will need help for unpacking them, although that’s native in Android 9 Pie. Providers like Google Photographs would probably be fast to embrace the format’s potential, too. Qualcomm has constructed a mockup of what an interface for HEIF file navigation may seem like, although it’ll be down to particular person device-makers and providers to determine how they need to current the additional wealth of knowledge preserved in every file.


The headline function for the Snapdragon 855’s safety enhancements is the Qualcomm 3D Sonic Sensor. Introduced yesterday, it’s the corporate’s newest fingerprint scanner, utilizing ultrasonics to construct a 3D map of the floor of the fingertip. What makes it notably particular is that it may be embedded beneath the show.

We’ve seen in-display fingerprint scanning earlier than, however Qualcomm says its system differentiates itself with its resilience to imperfect scans and its safety. As a result of it depends on ultrasonic mapping of the ridges and whorls of the finger, it could possibly scan by way of dust or grease. And whereas an optical scan would construct a 2D image, the 3D Sonic Sensor collects what’s successfully a texture map of the fingertip, which is safer.

Snapdragon 855 availability

Qualcomm is presently sampling the brand new Snapdragon 855 with OEMs. The primary units to ship utilizing the brand new platform will arrive within the first half of 2019, with OnePlus already confirmed as the primary phone-maker to use the brand new chip.