What is the Snapdragon 845 ?

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First of all, it is a 64bit system on a chip where this would be available in most of the Android Phones and Windows Laptop.

System on a Chip includes

  • Snapdragon X20 LTE Modem.
  • Adreno 630 Visual Processing Subsystem.
  • WIFI.
  • Hexagon 685 DSP.
  • Qualcomm Spectra 280 ISP.
  • Qualcomm Acoustic Audio.
  • Kryo 385 CPU.
  • System Memory.
  • Qualcomm Secure Processing Unit.

Now Let's talk about the CPU.
    
         The CPU in the Snapdragon 845 is the Kryo 385 built on cortex technology that means that the Qualcomm have taken a core design or two core designs from ARM and they have tweaked them a little bit maybe some of the internals like How it fits into the rest of the chip that layout physically on the Silicon then they've allowed branding that as their own chip design which is, in this case, the Kryo 385.

Image result for Snapdragon 845

        It's probably the Cortex A75 and the Cortex A55 ( both are two new designs from ARM that use dynamic and great thing about dynamic is that these cores are now together in the same cluster which means that they can share same Buses and all the same input and output without having to be separate and working independently. 

       Now here we have got four high-performance cores (A75) running at 2.8 gigahertz and also a four power efficiency ores (A55) running at 1.8 gigahertz each of them has both l1 and l2 cache and there is also a  l3 cache of 2MB and Qualcomm have added an extra System Cache which is of 3MB ie, when CPU and GPU want to talk to each other that data can be cached on-chip without having to go to Main Memory (because it's slow) which sums up around 30% increase in performance so we are getting to A11 Bionic.

 Faster, more Efficient Processing

30% Faster Graphics.
30% Better Power Efficiency.
2.5x Faster Display Throughput.

We've got the Spectra 280 ISP

ISP refers to Image Signal Processor which is of course is used when data comes from the camera, how you process all that information and turn it into files and JPEG files. It can record 4K @ 60 FPS 10 bit color for video recording and Slo-Mo Video @ 720p HDR10, 480FPS.

Qualcomm Quick Charge 4

  • 0 to 50% in just 15 minutes.
  • Industry Leading Charging Method.
  • 160+ Mobile Devices.
  • Compatible Superset of USB.
  • One charge for Everything.
Lastly Security

  • Fingerprint.
  • Iris.
  • Voice.
  • Face ID
All of these have a separated dedicated CPU Cortex M3.
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