What is the pixel fill rate in the video card?

The pixel padding rate refers to the number of pixels that the graphics processing unit renders per second, in mpixel/s (million pixels per second), or gpixel/s (1 billion pixels per second), which is the most common metric used to measure the pixel processing performance of the current display chip.

The rendering pipeline is an important part of the display core and is a set of specialized channels in the display core that are responsible for the color of the graphics. The more rendering pipelines, the higher the frequency of each set of pipelines (usually the core frequency), the higher the fill rate, the higher the performance, so that the performance of the GPU can be judged roughly from the pixel filling rate.

In general, the pixel fill rate of the video card is equal to the number of rendered pipelines showing the core multiplied by the core frequency. The pixel filling rate is obviously the theoretical maximum, and the actual effect is affected by the efficiency of pipeline execution. In addition, the performance of the graphics card is also affected by the core architecture, the number of vertices, memory bandwidth. For example, a higher fill rate rendering pixels requires a large amount of storage bandwidth to support, so if the video card's memory bandwidth does not keep up, the pixel fill rate of the video card will also be affected. However, for most graphics cards, the design will always allow the pixel fill rate, vertex generation rate, memory bandwidth, and so on several important indicators of the key to match, so from the pixel fill rate can be roughly reflected in the performance of the graphics card.

The pixel filling rate is one of the most important metrics of graphics performance, whether it is the rendering pipeline, the vertex unit in the DirectX9 era, or the unified rendering unit of the DirectX10 era. Simply put, the performance of a video card by the "pixel fill rate" and "memory bandwidth" two components. "Pixel padding rate" is the graphics calculation ability of the graphics card, "Memory bandwidth" is a measure of the data transmission capacity of the graphics card, the formula of pixel filling rate is: pixel fill rate = number of render pipeline x core frequency

At present, the pixel filling rate of this parameter is more used in computer graphics, but due to technological advances, many smartphones are also starting to use dual-core CPU and independent GPU chip, in the case of Qualcomm, MSM8X55 integrated Adreno 205 pixel filling rate of 245m/s, MSM8260 and MSM8660 (dual core) integrated Adreno 220 pixel filling rate of 532m/s, so Adreno 220 compared to the former has a significant performance improvement in the game, navigation and browser applications performance better, but also to provide greater display resolution support.