The Qualcomm Snapdragon 820 processor is designed for the top mobile terminals that offer an innovative user experience. The Adreno 530 GPU, Hexagon 680 DSP and Kryo CPU together form the Heterogeneous 820 Heterogeneous Computing "Iron Triangle"; based on the Snapdragon 820 processor The terminal was launched in the first half of 2016.
The Snapdragon 820 is a highly optimized custom 64-bit CPU designed for heterogeneous computing - Qualcomm Kryo. Kryo uses the latest 14nm FinFET process to support processing speeds up to single core 2.2GHz. Kryo is a continuation of the popular custom Krait CPU - the Krait CPU supports the Opteron 800, 801 and 805 processors. Compared to the Snapdragon 810 processor, the Kryo CPU and the Snapdragon 820 will deliver up to twice the performance boost and power efficiency. Combined with other heterogeneous components of the Snapdragon 820, Kryo delivers superior user experience, innovation and efficiency, making the Snapdragon 820 one of Qualcomm Technologies' most innovative top-of-the-line mobile processors to date.
Kryo is tightly integrated with the Adreno 530 GPU and Hexagon 680 DSP for high performance mobile computing and the latest in multimedia and connectivity. Compared to the Adreno 430, the new Adreno 530 GPU reduces power consumption by up to 40% and graphics and GPU computing performance by up to 40%. At the same time, the Snapdragon 820 processor will be equipped with a new 14-bit Qualcomm Spectra Image Signal Processing (ISP) unit for the first time, and the shooting experience will be further enhanced.
The Snapdragon 820 integrates the new Hexagon 680 DSP to achieve user experience innovation based on mobile SoC computing efficiency, which can help the Snapdragon 820 reduce power consumption and extend battery life. The Hexagon 680 has two major new features; first, a completely independent DSP for sensor processing, subtly named "low power island" for improved "always on" use cases Battery life, as well as sensor-assisted positioning. The second feature is to provide an updated level of power to the Hexagon DSP in the form of Hexagon Vector Extension (HVX).
The Snapdragon 625 is Qualcomm's first eight-core processor built on a 14nm process, which is the same process node as the Snapdragon 820 and also supports Quick Charge 3.0 fast charge technology. Although the Snapdragon 625 is part of the Snapdragon 600 series, the Snapdragon 625 uses the latest generation of 14nm process technology, which saves 35% compared with the previous generation Snapdragon 617 and is equipped with eight Cortex-A53 processing cores. The main frequency is up to 2GHz.
Qualcomm Snapdragon 625 processor, using A53 eight core design, its single core frequency up to 2.0GHz, 14nm FinFET process, while the GPU part is Adreno 506. Supports up to 24 million pixel camera, 4K video capture, and supports fast charge technology.
The Snapdragon 625 processor uses an advanced 14nm process technology. In contrast, the Snapdragon 652, which is also positioned at the mid-end, still uses the old 28nm process. It can be seen that the Snapdragon 625 has a natural advantage in terms of heat generation and power consumption control.
In addition, the Snapdragon 625 is also the third processor in the Snapdragon 600 series, which supports the 4K video recording after the Snapdragon 650 and the Snapdragon 652, and is equipped with a dual ISP and supports up to 24 million pixel cameras. The Snapdragon 625 supports up to Cat.7 LTE networks, enabling up to 300 Mbps downstream and 150 Mbps upstream, and also supports 802.11 ac Wi-Fi. On the GPU side, the Opteron 625 is equipped with the Adreno 506 and supports the Qualcomm Quick Charge 3.0 high-speed charging protocol.
Qualcomm Xiaolong 625 and 820 differenceThe Snapdragon 820 is the flagship processor that Qualcomm introduced in the first quarter of 2016. Now the smart phone with this chip is close to 200, and its powerful performance is impressive. In the 600 series, Qualcomm introduced the Snapdragon 625 processor with a 14-nanometer process, which is also a very popular mid-range processor due to its excellent power consumption and heat control.
The same 14nm process
These two processors are excellent in power consumption and heat optimization because of the 14nm process. The Snapdragon 820 is mainly for the high-end market, while the Snapdragon 625 is for the thousand yuan market.
CPU core architecture difference
The two processors have significant differences in the core. The Snapdragon 820 is equipped with four Qualcomm Kryo cores, while the Snapdragon 625 has eight cores. These eight cores use the more energy-efficient eight ARM Cortex A53s. The ARM Cortex A53 is currently the lowest power core architecture, thanks to the 14nm process, allowing the processor to perform better and more energy efficient.
The more advanced the process, the better performance and lower energy consumption. Although the two processors also use 14nm, the Snapdragon 820 core architecture is different. It is a quad-core Kyro developed by Qualcomm. The performance is not necessarily behind the ten cores of MediaTek, and the power consumption is bound to be higher after the performance is increased. Said that at the same frequency work, Xiaolong 820 power consumption / heat will be higher than 625.
Graphics processor distinction (GPU)
In addition to the different CPU core architectures, there are differences in the graphics processor models of the two processors. The Snapdragon 820 is equipped with the best Andreno 530, which is better than the 625's Adreno 510 GPU.
The Snapdragon 820 also offers Qualcomm's latest Hexagon 680 digital signal processor and spectral image sensor, which will better handle audio, video and photo tasks.
Chip baseband difference
The Snapdragon 820 baseband model is X12LTE, while the 625 baseband is a bit worse, using the X8 LTE Cat.7. X12LTE supports Cat.12/13, downloads up to 600Mbps, uploads up to 150Mbps, carrier aggregation supports downlink 3x20MHz, uplink 2X20MHz; X8 LTE supports uplink and downlink carrier aggregation, providing peak download/upload rate up to 300Mbps/100Mbps.
Ann Bunny running performance difference
One plus mobile phone 3 Antu rabbit running points
One plus mobile phone 3 Antu rabbit runs more than 140,000 points, the machine is equipped with the best flagship Qualcomm Snapdragon 820 quad-core processor, 6GB large running memory, can bring speed and smooth.
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The 360N4s is equipped with the Snapdragon 625 processor, and the Antu Bunny runs into 65,420 points. The performance is ranked between the midrange processors. Thanks to the Cortex A53 architecture power saving solution, the aircraft's endurance is quite good.
Summary: The difference between Xiaolong 820 and Xiaolong 625 lies in the different positioning. The former is for high-end flagship products, while the latter is for the thousand yuan mobile phone market. If you compare performance, then Snapdragon 820 is a very good choice, and Snapdragon 625 is more suitable for the masses.
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