On January 25, at the ASUS ROG 2022 new product launch conference, ASUS said that ROG and ASUS Sky Choice 2022 support "dual display and three modes" graphics card switching, supporting three output modes of unique output, integrated display output and mixed output, which can allow users to find the most suitable use scheme in performance and battery life. Compared with ordinary graphics card switching, what different experiences can "dual display and three modes" bring? This is explained in detail below.
Unique Output Mode: Fully unleash GPU performance
The unique output mode refers to the direct output of all the pictures to the screen through the independent display responsible for graphics operations. The advantage of this is that the operation and rendering work responsible for the sole display will no longer be "transferred" to the screen through the centralized display, so the picture transmission will not be affected by the memory bandwidth.
However, although this can bring about an improvement in game performance and frame count, if you have been responsible for all the calculation and output work of the device with a single display, leaving aside the power consumption of the high load in the game mode, even in the power saving mode, its power consumption is very amazing. It is also based on this consideration that ROG also configures the player with two other modes of "mixed output" and "display mode".
Mixed output mode: Flexible switching between performance and battery life
In the mixed output mode, the software will automatically judge the equipment usage to turn off or turn on the unique display, under the condition of ensuring performance, as far as possible to improve the battery life of the notebook equipment.
Mixed output mode distinguishes between two scenarios: only by the centralized output and by the unique + centralized output. In the case where the software judges that the unique display is not needed, it will turn off the unique display only with the integrated display for calculation and output, and when it detects that there is a 3D game engine running on the device, or video playback accelerated by DX hardware, and the software running that will involve CUDA, it will let the unique display perform calculations and rendering, and then transmit it to the CPU's integrated graphics card through memory, and then the display will output the picture to the screen.
This compromise processing method can certainly reduce the power consumption of the device and improve the battery life. But there are also two bottlenecks, the first is the bandwidth of the memory, mixed mode can not be directly output to the screen by the graphics card, the data output of the graphics card needs to reach the display through memory, so the bandwidth of the memory is crucial, in the mixed mode will greatly occupy the transmission bandwidth, and then reduce the number of frames of the display output. To this end, ROG has equipped all new products this year with DDR5 high-frequency memory as standard, which can further reduce the frame loss caused by memory bandwidth bottlenecks while improving application processing speed. 、
The second bottleneck comes from the performance of the display itself, although the display theory undertakes the task of calculation and rendering, but the display still needs to perform its own functions, output the picture transmitted by the display, in the scene where the transmission bandwidth is too large, the performance of the display will limit the overall performance.
Integrated display output mode: Comprehensively improve the battery life
The "integrated display output" mode in the dual display three modes is an output mode that fully serves the endurance, in this mode, the unique display will be completely disabled and shielded, so that it does not consume any power to improve the battery life, and the user can also further open the power saving mode in the ROG's Altran Intelligent Control Center to obtain a longer battery life.
Of course, "dual display three modes" is not the end, ROG magic X, magic 13 because of the support for XG Mobile graphics card docking station, can be upgraded to "three display three modes", can be integrated display, unique display, external docking station unique display three display core flexible switch three modes.
Although the three modes have their own advantages and disadvantages, compared with ordinary graphics card switching, the dual display and three modes can make the advantages of different modes better complement each other, balance the use of notebooks between battery life and performance, and be competent for the application needs of more scenarios.