骁龙820 and 821 which is good _ Xiaolong 820 and 821 power consumption measured

The 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 CPU of the Snapdragon 821 has a main frequency of 2.4GHz, a small core frequency of 2GHz, and a GPU frequency of 650MHz. In other words, the CPU performance of the Snapdragon 821 is increased by 10%, while the GPU is increased by 5%.

On July 11, Qualcomm officially released the latest flagship processor, Xiaolong 821. Nowadays, we are also welcoming more of the 821 821 flagship, how much better than the Snapdragon 820? Do users who already own the flagship of Snapdragon 820 need to replace the Snapdragon 821 flagship? Let's take a look at the difference between Xiaolong 821 and 820!

Since the beginning of the year, a number of Android flagship phones equipped with Qualcomm Snapdragon 820 processors have appeared, such as Samsung Galaxy S7, Xiaomi mobile phone 5, vivo Xplay5 Ultimate, and one plus three. With the launch of these mobile phones, the strong performance of the Qualcomm Snapdragon 820 processor has gradually gained recognition from the average consumer.

In July of this year, Qualcomm also released a new generation of flagship mobile processor - Xiaolong 821. Compared with the familiar Qualcomm Snapdragon 820, what about the Snapdragon 821? Today, the rabbit is coming for everyone.

Note: The results of the Antu Bunny running in this article are from Le Pro3 (骁龙821) and one plus 3 (骁龙820).

Basic parameters

By comparing the basic parameters of Qualcomm Xiaolong 821 and Xiaolong 820, we can easily find that the difference between the two is small. After all, they belong to the Snapdragon 800 series, both of which are 82X.

Both processors are available in a 14nm process and are equipped with Qualcomm's custom quad-core Kyro CPUs, all supporting Cat 12/13 LTE connectivity.

The difference is that the highest CPU frequency of the Qualcomm Snapdragon 821 reaches 2.4GHz, while the highest CPU frequency of the Snapdragon 820 is 2.2GHz. In addition, Qualcomm's data shows that despite the Adreno 530 graphics processor, the Snapdragon 821's GPU achieves a 5% speed improvement over the Opteron 820.

Comprehensive performance

After understanding the basic parameters of the two processors, the rabbit will then compare the data through multiple sets of running points. First, let's take a look at their comprehensive performance comparison. The comprehensive performance of Ann Bunny is the key to measuring the overall performance of a mobile phone. The higher its score, the stronger the performance.

In terms of comprehensive performance, Qualcomm Snapdragon 821 is more than 15,000 points higher than Snapdragon 820, achieving an 11% improvement.

Although both processors use a 14-nanometer process, the Qualcomm Snapdragon 821 has a higher clock speed and a higher GPU performance, which in turn makes the overall performance better than the Snapdragon 820. The degree of improvement.

Single core performance

Next, let's take a look at the single-core performance of the Snapdragon 821. For now, Android smartphones are generally quad-core, eight-core processors, and even ten-core processors. However, most of the current apps are single-threaded, and some support 4 to 8 cores. Therefore, the stronger the single-core performance, the better the daily experience.

In terms of single-core performance, Qualcomm Snapdragon 821 was 1540 more than Snapdragon 820, an increase of 13%.

Of course, such a result is also expected, after all, the processor of the Snapdragon 821 has a higher frequency. As far as practical applications are concerned, the Qualcomm Xiaolong 821 terminal runs a single task, and the performance in terms of fluency will be slightly better.

Multi-core performance

After comparing the single-core performance, let's take a look at the difference between the multi-core performance. When the mobile phone runs multi-tasking, such as running WeChat, Weibo, mobile QQ and other applications in the background, a single CPU core operation can not meet the demand, other CPU cores will start to carry out coordinated operations.

The database data of Ann Bunny evaluation shows that Qualcomm Xiaolong 821 still has advantages in multi-core performance, achieving a 22% improvement.

As for the reason, it is very simple, its single-core performance can be strong, and the multi-core performance of multiple CPU cores in cooperative operation is also stronger.

GPU performance

Finally, let's talk about GPU (graphics processor) performance. In fact, the performance of the mobile processor GPU directly affects the score of the terminal device in the "GPU Performance" project in the running test. According to Qualcomm (Qualcomm), the GPU of the Snapdragon 821 achieves a 5% speed increase compared to the Snapdragon 820. The results are clear.

In terms of the "GPU performance" scores of the two devices, the Qualcomm Snapdragon 821 is 6522 points higher than the Snapdragon 820, with a 12% increase.

Thanks to the overall optimization, the "GPU performance" of the Snapdragon 821 is significantly higher than the GPU. For friends who are passionate about large 3D mobile games, this is definitely a boon.

Overall, compared to the current high-end market mainstream Qualcomm Snapdragon 820 processor, the Snapdragon 821 processor has achieved more than 10% improvement in terms of comprehensive performance, single-core performance, multi-core performance and GPU performance. Although the Xiaolong 820 is already very strong, the Xiaolong 821 is obviously stronger!

For those who value the performance of mobile phones, it is recommended that you buy a smart phone equipped with Qualcomm Snapdragon 821 processor, the game performance is better!

Is this finished? actually not.

In fact, in the current performance of mobile phone hardware, the power consumption problem can not be ignored. Information from Qualcomm shows that under normal conditions of use, the Snapdragon 821 can bring 5% extra power. This is exactly what I am concerned about.

More importantly, the latest release of the Snapdragon 821 smartphone has already cost 2,000 yuan, and it is not high, it is a product that ordinary consumers can afford.

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