There are mainly three series of Qualcomm SoCs which we have seen in phones and other devices. Those three are Snapdragon 400 series, Snapdragon 600 series, and Snapdragon 800 series. The Snapdragon 400 series of SoCs are mainly made for the low-end smartphones, which comes with the limited features. The second is Snapdragon 600 series. The Snapdragon 600 series are mainly focused on mid-range smartphones and in this series Snapdragon 675 is the best processor for the year 2019. Now comes to the Snapdragon 800 series, which is used in most of the flagships smartphones nowadays. In this article, we are doing a specs comparison between Qualcomm Snapdragon 670 Vs Snapdragon 845 processor in we will know which one is better in terms of various performance measures. But before you should understand the full hierarchy of Qualcomm Snapdragon SoCs for which those are mainly made for: Snapdragon 200 Series for Entry-Level, 400 Series for Low-End, 600 Series for Mid-Range, 700 Series for High-End, and Snapdragon 800 Series for Flagship.
Snapdragon 670 Vs Snapdragon 845 Specification and Performance Comparison
CPU, GPU & Manufacturing Process
The fabrication process of both SoCs: Snapdragon 670 and Snapdragon 845 are same as both works on 10nm FinFET Process. However, the performance of Snapdragon 670 is not the same as the performance of Snapdragon 845. The Snapdragon 845 is a flagship processor with best possible resources than Snapdragon 670. Only the same fabrication process will guarantee the similar performance of a processor. Yeah, off-course, there are lots of differences between these SoCs too.
In the CPU department, both the Snapdragon 670 and Snapdragon 845 are the octa-core CPUs. The Snapdragon 670 has designed on Kryo 360 Gold and Kryo 360 silver CPU cores. The CPU has 2 high performance cores and 6 power-efficient cores. The 2 high performance cores are based on Cortex-A75 architecture clocked at 2.0GHz speed, while the 6 power efficiency CPU cores are designed on Cortex-A55 clocked at 1.7GHz speed. If we talking about the Snapdragon 845, it comes with a better CPU design based on Kryo 385. It gives the better performance as it includes the 4 high performance CPU cores and 4 power efficient CPU cores. The high performance cores has Cortex-A75 architecture clocked at 2.8GHz whereas the remaining 4 cores are based on Cortex-A55 architecture clocked at 1.7GHz.
So in CPU department, Snapdragon 845 is the winner because it has 4 x 2.8GHz & 4 x 1.77GHz CPU cores with better instruction set architecture. With 28.73% faster CPU speed, it is pretty obvious that Snapdragon 845 gives better performance than 2 x 2.0GHz & 6 x 1.7GHz CPU cores in the Snapdragon 670.
The GPU performance of these two SoCs are also not same. The Snapdragon 845 has Adreno 630 GPU inside which can operate up to 730MHz speed. In the Snapdragon 670, the Adreno 630 GPU has been used and its speed is limited to 700MHz, which is lower than the speed of SD 845. Also, if we compare to other GPU in Adreno 600 series, the Adreno 615 is a relatively new SoC. Its performance in mid-range smartphones is very good, but it is not upto Adreno 630 GPU used in Snapdragon 845.
Both the SoCs: Snapdragon 670 and Snapdragon 845 have the 3rd Generation Hexagon 685 DSP AI engine. AI features in both SoCs are very much identical. Both have the Hexagon Vector extensions (HVX) for faster image processing and advanced computing. As per the Qualcomm claim, the Hexagon 685 DSP is 1.8x faster than its previous generation DSP.
Moving on to the camera features of both CPUs. The flagship CPU Snapdragon 845 has an Spectra 280 dual 14-bit ISP (14-bit 2x processor). It allows up to 16MP dual camera at 30fps, 16MP Single camera at 60FPS, 32MP Single camera with 30FPS and a slow-motion video recording up to 720p at 240FPS. The SoC can support up to 48MP single sensor with MFNR and a 192MP single sensor without any manipulation.
The Snapdragon 670 has a Spectra 250 dual 14-bit ISP (14-bit 2x processor). It allows up to 16MP dual camera at 30fps, 25MP Single camera at 30FPS. The SoC can also similar 48MP single sensor support with MFNR and a 192MP single sensor without any manipulation. However, 192MP camera is only on paper. Because in practical, as of now we have only seen a 108MP of maximum camera sensor support in any smartphone.
RAM, Storage & Display
The Snapdragon 845 can support for up to 16GB LPDDR4X-1866 RAM with a maximum bandwidth of 29.8 Gbit/s. While in Snapdragon 670 it is restricted to 8GB LPDDR4X-1866 RAM with a maximum 13.91GB/s. The Snapdragon 845 has 15.99GB/s more memory bandwidth than Snapdragon 670. The storage features are same in both CPUs as both supports UFS2.1 storage type.
In display department, Snapdragon 845 can support for 4K (3840 x 2160 pixels) Ultra HD Display. In Snapdragon 670, it is limited to Full HD+ (2560×1600 pixels) support only. Both the Snapdragon 845 and 670 can record a 4K video, but here the difference in its FPS. The Snapdragon 845 has an ability to record 4k video at 60FPS while the Snapdragon 670 allow to record a 4K video at 30FPS only. The Snapdragon 845 also has the more video codecs and audio codecs support. So, here the winner is Snapdragon 845.
The Snapdragon 845 comes with X20 LTE Modem which uses LTE Cat. 18 and provides 1.2Gbps Download speed and up to 150Mbps upload speed. The Snapdragon 670 has an X12 LTE modem which uses LTE Cat. 12 and offers upto 600Mbps Download speed and up to 150Mbps upload speed. Both the SoCs have support for Bluetooth 5.0, GPS, Dual-Band Wi-Fi, NFC, etc. But Snapdragon 845 has a slight better navigation feature as it has two more GPS support: Beidou, Galileo.
If we don not count similar features and specs such as both build on 10nm fabrication technology, has the same Cortex-A75 and A-55 architecture, and also the same DSP feature, the Snapdragon 845 is ahead in almost all department. The Snapdragon 845 has a powerful CPU with 2.8GHz clock speed, Powerful 630 GPU and a powerful X20 LTE Modem that provides best connectivity features. However, it is not right to compare a flagship CPU to a Mid-range offering CPU. Both are the best SoCs in their respective segment. So, it is up to you to choose either a flagship processor or mid-range offering processor. It all depends what is your budget.