Home Processor Difference between Snapdragon 845 and Snapdragon 855

Difference between Snapdragon 845 and Snapdragon 855

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Snapdragon 845 is the flagship chipset from Qualcomm at the last of 2018 whereas Snapdragon 855 is another flagship chipset from Qualcomm at the last of 2019.  According to design, construction and performance both have different specifications. Let’s see which one is better.

What is Snapdragon 845?

Snapdragon 845 is a 64-bit Arm LTE system high-performance chipset. It is designed by Qualcomm at the last of 2017 and beginning of 2018. It is produced on 10nm 10LPP by Samsung. Snapdragon 845 is an octa-core processor divided into two segments. One of that fast performer segment contains four ARM Cortex-A75 (Kryo 385 gold) cores operating at a clock speed of 2.8 GHz. The other power efficient segment contains four small ARM Cortex-A55 (Kryo 385 silver) cores operating at a clock speed of 1.7 GHz. Adreno 630 GPU is included with Snapdragon 845 that supports X20 LTE modem combining of Cat 13 uplink and Cat 18 downlink. It can support up to 8GB of LPDDR4X RAM.

Read more: Qualcomm Snapdragon 845 Full Specification, Gaming experience

What is Snapdragon 855?

Snapdragon 855 is a 64-bit Arm LTE system high-performance chip set. It is designed by Qualcomm at the last of 2018. 7nm processing Snapdragon 855 is an octa core processor divided into two segments. One of that fast performer segment contains four ARM Cortex-A76 where three Kryo-485 gold cores operating at a clock speed of 2.42 GHz and the fourth Kyro-485 gold core operating at a clocked speed of 2.84 GHz. The other power efficient segment contains four small ARM Cortex-A55 (Kryo 485 silver) cores operating at a clock speed of 1.8 GHz. Adreno 640 GPU is included with Snapdragon 855 that supports X24 LTE modem combining of Cat 20 uplink and Cat 20 downlink. It can support up to 16 GB of LPDDR4X RAM.

Read Now: Snapdragon 855 Processor, Gaming experience and Features

Comparison between Snapdragon 845 and Snapdragon 855:

Mobile Platform Snapdragon 855 Snapdragon 845
Performance Snapdragon 855 contains four ARM cortex A-76 (3 x Kyro-485 gold clocked at 2.42 GHz + 1 x Kyro-485 gold clocked at 2.84 GHz) and four ARM cortex A-55 (4 x Kyro-485 silver clocked at 1.8 GHz). It can support up to 16 GB of LPDDR4X RAM. Snapdragon 845 contains four ARM cortex A-75 (4 x Kyro-385 gold clocked at 2.8 GHz) and four ARM cortex A-55 (4 x Kyro-385 silver clocked at 1.7 GHz). It can support up to 8GB of LPDDR4X RAM.

Which gives better Performance?

Paired with most power efficient 7nm process and new Cortex A76 Snapdragon 855 give up to 45% improvement performance boost over Snapdragon 845.

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Comparing with Snapdragon 845, Qualcomm implies a tri-cluster configuration in Snapdragon 855. There are still 4 Kyro-485 gold but it is divided into (1 x Kyro-485) + (3 x Kyro-485) segments. It enhance the performance under loads where one large thread to be executed.

Also the prime cores of Snapdragon 855 shares same voltage as other two which results more power efficient on high loads.

Mobile Platform Snapdragon 855 Snapdragon 845
Graphics Adreno 640 GPU is included with Snapdragon 855 that supports X24 LTE modem combining of Cat 20 uplink and Cat 20 downlink. Adreno 630 GPU is included with Snapdragon 845 that supports X20 LTE modem combining of Cat 13 uplink and Cat 18 downlink.

Who provides better Graphics?

The new Adreno 640 GPU is 20% faster than Adreno 630 on Snapdragon 845. The Adreno 640 graphics supports true HDR gaming and games built around PBR. Based on 7nm process, Snapdragon 855 provides to play high-end games with less power consumption. Snapdragon 855 also supports 120fps gaming and 8K 360 degree videos.

Compared with Snapdragon 845, the new Snapdragon 855 supports HDR10+ and Dolby Vision formats.

Mobile Platform Snapdragon 855 Snapdragon 845
ISP and NPU Dual 14-bit Spectra 380, Supports up to one 48MP sensor, Supports up to two 22MP sensors.

4th generation on-device AI Hexagon 690 DSP deliver smarter, faster and secure experience on personal assistant for camera, voice, XR and gaming.

Dual 14-bit Spectra 280, Supports up to one 32MP sensor, Supports up to two 16MP sensors.

The 3rd generation Qualcomm Hexagon 685 DSP explore the AI performance. It can deliver a better camera, voice and gaming experience.

Which one is better in Display quality and features?

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Spectra 380 will enable new camera features like HDR in portrait mode and Portrait mode in 4K videos consuming 30% less power as compared to Snapdragon 845.

Spectra 380 ISP has designed to provide more power efficiency in image processing. It supports High-Efficiency Image Files or HEIF format.

Snapdragon 855 has all new neural processing unit (NPU) included with Tensor-cores that execute up to 7 trillion operations per second by the CPU and GPU.

Mobile Platform Snapdragon 855 Snapdragon 845
Connectivity The world’s first 5G mobile platform experience with the Snapdragon X50 5G modem. Combining with a high Wi-Fi performance, it enhance towards next generation. It has X20 LTE modem that gives fast GB LTE download speed. Besides this it also support ultra-low power ear bud, BT5 audio and MU-MIMO Wi-Fi.

Which provides better connection?

Snapdragon 855 supports 5G using Snapdragon X50 modem combining with Wi-Fi 6. The Snapdragon 855 supports up to 2Gbps download speeds (4G LTE), using the X24 LTE modem (Both mm Waves and Sub 6GHz bands). The units without 5G connectivity should also be available to OEMs.

Conclusion:

The Snapdragon 855 brings several major improvements over Snapdragon 845. Use of Cortex A76 cores and the more efficient 7nm process improve the raw performance compared with Snapdragon 845. Apart from the hardware portion, Qualcomm’s software technology is adding up advantages in Snapdragon 855 over the Snapdragon 845.

 

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Rahul
I am a student pursuing B.Tech in Electrical Engineering. I love to gathering the knowledge about new smartphones and the new technologies related to it. May be that's why I am here to give away some of my knowledge. Also I love to listen music and playing video games.

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