If you buy a sports car with a power of 500 horses, you can only output 250 horses every day, even if you step on the floor oil, it will not help. Even sometimes the engine overheats due to intense driving, which causes the water tank to "boil", and it can only stop on the side of the road and let it think about "quietly".
In order to avoid this situation, many car manufacturers using this "three-cluster architecture" high-horsepower engine can only choose to output at 50% and 60% horsepower.
▲ ASUS Snapdragon smartphone. Picture from: Qualcomm
There are also some car manufacturers "swords and deflection", customized many cooling kits for this engine, with the relevant engine tuning, after mounting the cooling kit, the "tightening" can be released, so as to exert 100% of the horsepower.
This is like the AE86 in "Initial D" that was replaced with a TRD competition engine. It must be matched with a new tachometer to achieve 100% performance.
▲ Toyota TRD 4A-GE engine. Picture from: Initial D Wiki
After half a year, step by step, Qualcomm's eight-series engine factory released a new, overclocked version of the new SoC based on the Snapdragon 888, named Snapdragon 888+.
From the spec sheet alone, Snapdragon 888 and Snapdragon 888+ have the same architecture and technology, the only difference is that the CPU super core X1 is overclocked from Snapdragon 888’s 2.84GHz to 2.995GHz, and AI computing power has been increased from 26TOPS. To 32TOPS, the rest remain the same.
▲ Qualcomm Snapdragon 888+ Compared with Qualcomm Snapdragon 888, the difference is only the core frequency of Cortex X1 and the computing power of NPU. Picture from: AnandTech
The improvement of the super-large core will bring about a 5.2% performance improvement, but the improvement is only the upper limit of performance. The frequencies (840MHz) of the 3 core Cortex-A78, 4 small core Cortex-A55 and Adreno 660 of Snapdragon 888+ remain unchanged, and in theory, the daily improvement will not be too obvious.
But what about the actual situation? As products equipped with Qualcomm Snapdragon 888+ are launched one after another, we finally have the opportunity to find out with the help of corresponding products.
▲ Grabbed ROG Phone 5s, the first release of the Snapdragon 888+ gaming phone.
Similar to the upgrade strategy of Qualcomm Snapdragon 888+, the ROG Phone 5s that was first released in game phones basically changed the processor. After all, it is only about 5 months after the release of ROG Phone 5, and it can be seen from the naming. As a result, ROG Phone 5s can only be regarded as an enhanced version.
Therefore, in this article, I will not repeat the existing features on ROG Phone 5 (if you are interested, you can check the " ROG Game Phone 5 Phantom First Release Experience "), and only focus on the performance of Qualcomm Snapdragon 888+.
▲ The cooler fan that comes with ROG Phone 5s is connected to the body by contacts without a separate cable, which is a lot more convenient.
In the past, gaming (e-sports) mobile phones have more aggressive scheduling and tuning of SoC, and they will also launch some active cooling kits to give them long-term high-performance output.
The same is true for ROG Phone 5s, which provides an X mode with full performance and comes with a multi-purpose cooler fan. In the actual experience, after installing the fan, ROG Phone 5s will turn on X mode by default to bring stronger performance.
After such a few tricks, can ROG Phone 5s fully display the strength of Qualcomm Snapdragon 888+? And how much improvement is there compared to Qualcomm Xiaolong 888?
This article mainly focuses on the three types of loads of AnTuTu, "Peace Elite", and "Yuan Shen", respectively, in the ROG Phone 5s and iQOO 8 Pro of Qualcomm Snapdragon888+, and the Red Devils game equipped with Qualcomm Snapdragon888 The mobile phone 6 Pro was tested, and the results were recorded and viewed with the help of PerfDog.
Running software: short time and sufficient performance
See the table for specific results.
From the figure, whether it is Antutu, GFXBench or 3D Mark, the results of the two are very close. Qualcomm Snapdragon 888+ has only a little advantage, which can even be ignored.
But from this there is also a conclusion that Qualcomm Snapdragon 888+ has paid more power consumption in order to improve its score.
Judging from the power curve, in GeekBench, the large, medium and small three-core firepower is fully activated, and the peak power consumption of the ROG Phone 5s comes to 11.2W, and the average power consumption is 5.8W. The Red Magic 6 Pro of Snapdragon 888 has a peak power consumption of 9.9W and an average power consumption of 5.1W.
The power consumption gap in the Antutu running score is even more obvious. Without the heat dissipation back clamp, the peak power consumption of ROG Phone 5s is 14.7W, the second peak is 12.3W, and the two peaks are mostly The GPU is fully loaded. When the subsequent CPU runs at full load, the power consumption of the whole machine is 9.9W. Run the complete AnTuTu test process, the average power consumption is 6.23W.
Under the same process, the peak power consumption of the Red Magic 6 Pro is 10.4W, and the average power consumption is 4.7W.
Whether it is running sub-test software such as Antutu, Geekbench or GFXBench, the test is a short-term performance release, and the duration is not long.
Ordinary mobile phones and game phones with related settings can mobilize large, medium and small cores within one process, and can play the level that Qualcomm Snapdragon 888+ or Snapdragon 888 should have. However, in order to reach a higher upper limit of performance, more power consumption is paid and the conversion efficiency is relatively average.
In addition, in the shorter running points, the temperature rise of ROG Phone 5s and Red Magic 6 Pro is not obvious, and the passive heat dissipation is sufficient to resist the heat generated by the SoC.
National mobile game: X1 "fishing" all the way, but still able to run at the highest frame rate
The performance of eating chicken is almost equivalent to the performance of the current mainstream national mobile games.
"For the fairness of the game", the frame rate and picture quality are not enough to squeeze the top mobile phones, but more to ensure the operation of most devices. Therefore, the test environment of ROG Phone 5s and Red Magic 6 Pro is to turn on smooth image quality plus 90fps, as well as turn on anti-aliasing and shadow effects.
During the game, the two top frames at 90fps throughout the whole process, and no lag is felt at all. Qualcomm Snapdragon 888+ In the future (probably searching for supplies), the middle core Cortex-A78 and the small core Cortex-A55 are more active, while the X1 large core occasionally flashes 2.995GHz, and more is "fishing" at 844MHz low frequency. .
▲ From the perspective of the X1 core alone, the Snapdragon 888+ of ROG Phone 5s is much more active than the Snapdragon 888.
Later (in the finals) as the scene rendering pressure became less, the core of the A78 kept running at 1.8GHz, and all the pressure was thrown on the small core of the A55. The X1 super core still remained silent at 844MHz, and occasionally came to 1.8GHz to do it. Assisted. Throughout the whole process, the average GPU load of Qualcomm Snapdragon 888+ was 37.3%, and the power consumption of ROG Phone 5s remained at about 5.1W.
▲ In the core performance of the A78, Qualcomm Snapdragon 888 has a higher frequency in the second half, which also shows the different orientations of the two in CPU scheduling. The core A78 of the Red Magic 6 Pro is more active, while the super-large core of ROG Phone 5s X1 is more mobile.
In the comparison group of Qualcomm Snapdragon 888, the process and results are similar, but during the game, the scheduling of the middle core is more active, and the whole process runs at 2.1GHz. As a result, the X1's large core usage rate is lower, almost The highest 2.84GHz is not seen, and most of them go through the field at 844MHz.
▲ Among the mobile games of "Peace Elite", the power of Snapdragon 888+ and Snapdragon 888 is not much different.
Overall, the average GPU load of Qualcomm Snapdragon 888 is 39%, and the overall power is 5W.
From the performance of "Peace Elite", the performance of Qualcomm Snapdragon 888+ and Qualcomm Snapdragon 888 are almost the same, including power consumption, load and other conditions.
"The Original God": If you want to turn on the special effects, a cooling fan is a must
Before ROG Phone 5s, there were already two Qualcomm Snapdragon 888+ positioning all-round models on the market.
▲ iQOO 8 Pro.
But they did not perform well on the original God, the average frame rate is about 35fps, especially in the city and the field where a large number of textures need to be loaded, too concentrated texture rendering and calculation, SoC heat accumulation is serious, and it is very fast The temperature wall of CPU 50℃ is reached.
▲Under the pressure of "Original God", iQOO 8 Pro's Snapdragon 888+ is obviously reduced in frequency.
In this way, the frequencies of the large core X1 and the mid-core A78 can only be reduced to 1.8GHz and 1.44GHz respectively, and the small core of the A55 runs at full load.
When the official "Monster (performance)" mode is turned on, the hands and feet of Qualcomm Snapdragon 888+ will be completely released, and the frequency will no longer be locked or reduced. As a result, the average frame rate increased to 49fps, the temperature of the CPU soared to 60°C, lasting less than four minutes, and the whole machine turned on the high temperature protection mode.
Back to the game mobile phone camp, the protagonist is also ROG Phone 5s, and the control group is Qualcomm Xiaolong888's Red Devils gaming phone 6 Pro.
After the ROG Phone 5s is not equipped with a cooler fan and manually turned on the X mode, the average frame rate of "Original God" is 54.6 frames, but the overall performance is not stable, and there will be more obvious frame drops when switching scenes.
When the CPU temperature is close to 50°C, similar to ordinary mobile phones, the frequency is also reduced to ensure safety. The X1 core and the A78 core will reach 1.55Hz at the same time. As the heat dissipated and the CPU temperature stabilized, X1 and A78 became active again, maintaining roughly this strategy for the first few minutes.
However, in the later process, the accumulated heat may not be able to dissipate in time. X1 and A78 basically maintain a frequency of 1.55GHz, and the pressure is all borne by the small core A55. At this time, the screen will experience more frequent frame rate fluctuations and the GPU is almost fully loaded.
ROG Phone 5s GPU has an average load of 65.5% and an average power of 6.1W, while the peak power appears in the initial stage of full firepower for large, medium and small cores, which is 10.9W.
The Red Devils 6 Pro in the control group performed much better without active cooling. The fundamental reason is the difference in the setting of the temperature wall. ROG Phone 5s is at 50°C, while Red Magic 6 Pro is directly at 60°C.
▲ The 60℃ temperature control wall is very radical, the eyes are refreshed, but the palms are suffering. At this time, the frame of the Red Magic 6 Pro has a clear sense of heat.
The average frame rate of "Original God" is 58.6fps, and the frame rate fluctuates greatly in the later period. The large, medium and small cores of Qualcomm Snapdragon 888 remain active throughout the entire process. X1 outputs for 90 seconds every 4 minutes. However, after hitting the 60°C temperature control wall, it began to fluctuate, resulting in obvious frame drops after 20 minutes.
The average GPU load of the Red Magic 6 Pro is 73.8%, the average power rises to 8.5W, and the peak power appears at 10.1W in the later process.
After mounting the cooler fan on ROG Phone 5s, the performance of Qualcomm Snapdragon 888+ was completely liberated, but the CPU temperature wall was raised to 55°C.
The average frame rate of "Original God" came to 58.7fps, and the frame rate remained very stable. The only case of concentrated frame drop during this period was when the CPU temperature increased to 55°C, and the X1 and A78 frequencies of Snapdragon 888+ collectively dived to 1.55GHz and 0.7GHz. Following the high frequency return of X1 and A78, the performance output of Snapdragon 888+ rebounded again.
However, in the second half, in order to stabilize the CPU temperature at around 55°C, ROG Phone 5s has performed frequency reduction processing on both X1 and A78. X1 is reduced to 2.38GHz, and A78 is reduced to 2.27GHz, but the CPU frequency is not reduced. Affect the frame rate of the foreground game.
▲ The CPU temperature exceeds the warning value of 55℃, and the Snapdragon 888+ starts frequency reduction and frequency lock.
With the cooler fan, the ROG Phone 5s GPU has an average load of 73% during the whole process, the average power is also 8.5W, and the peak power is 13W before the temperature control at 55°C.
On the other side of the Red Magic 6 Pro, with a cooling fan, the CPU temperature did drop to 50°C, but the frame rate fluctuates greatly after the game, with an average of only 54.4fps. And the addition of a cooling fan of about 10W, so that the power consumption of the whole machine soared to 16W, and the peak value reached 17.4W. After nearly 30 minutes of testing, nearly 50% of the battery was lost.
When the fan is connected to a separate power supply, Red Magic 6 Pro returns to its previous performance. Qualcomm Snapdragon 888's super core X1 is more active, with an average frame rate of 58.3fps, a GPU load of 75.4%, and an average power consumption of 8.5W , The peak power soared to 11.6W.
However, in the process of running "Original God", the Red Magic 6 Pro has restricted the maximum frequency of the Qualcomm Snapdragon 888 super core X1, which is limited to 2.49GHz, perhaps because of the continuous release of performance.
At this stage, if you want the performance of Qualcomm Snapdragon 888+ to be fully and lastingly released, an active cooling kit such as a cooling fan is a good helper. It can even be said that it is just a need for accessories, and the cooling fan is better to be powered separately to reduce the number of mobile phones. Power loss.
Qualcomm Snapdragon 888+ has little performance advantage
I played games for nearly a weekend with these phones. From the perspective of gaming experience, there is very little difference between Qualcomm Snapdragon 888+ and Qualcomm Snapdragon 888.
In terms of models, gaming phones have more aggressive performance releases and better stability. If coupled with a dedicated heat dissipation kit, it can almost release the performance that Qualcomm Snapdragon 888+ should have.
The conventionally configured products only rely on passive heat dissipation, and the heat dissipation speed is not ideal. High-energy products will hit the temperature control wall in about 5 minutes, thus starting to reduce the frequency to ensure safety. Turning on the built-in "performance" mode can easily cause overheating and downtime.
From this point of view, active heat dissipation is one of the must-haves if you want to give full play to the full performance of Qualcomm Snapdragon 888+. The second is to require mobile phone manufacturers not to set up such as 50 ℃ temperature control wall, or to provide the so-called "performance" mode to release the full strength of the core of the super core X1 and A78.
However, in order to achieve the extreme performance of Qualcomm Snapdragon 888+, it needs to consume more power, and at the same time, it will be accompanied by more accumulated heat, which is fed back to the actual gaming experience. The small performance advantage is not obvious, but It is easier to perceive heat and power consumption.
The latest Qualcomm Snapdragon 888+ is still Qualcomm's regular "overclocking" chip in the second half of the year. It is the same idea as the Snapdragon 865+, but the overclocking range is not as radical as the Snapdragon 865+.
Due to the poor heat dissipation performance of the Samsung 5nm process technology used by the Snapdragon 888 and Snapdragon 888+, the performance of the 888+ and 888 products is not much different due to thermal management. In conventional flagship phones with active cooling kits, the gap between them is even smaller, and even a tie.
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