The GPU, or Graphics Processing Unit, is a specialized circuit that focuses on generating images for a device to display. Every modern mobile device has some form of a GPU to aid in generating images and computer graphics and is an essential part of every modern mobile device. Without it, high-performance games and elaborate user interface elements just wouldn’t be possible without seriously taxing your device’s CPU and battery.
Video editing requires a much more powerful computer, compared to a simple everyday PC usage for surfing or watching movies.
Depending on your budget, especially if it’s limited, you will have to consider different pros and cons of having a more expensive GPU vs a lower-end one. Quite often you will have to choose between buying a faster quad/8-core CPU vs a high-end GPU with plenty of VRAM.

Now, the question is: how important a graphics card really is, when it comes to video editing?
Will a premium GPU, with more VRAM, actually increase your video editing speed? Will the rendering or previewing become much faster? Let’s find this out real quick.

The GPU of your device is so important mainly because it makes games run more efficiently and makes them look better with higher resolution graphics and improved framerates, or how many frames per second the game runs at. Higher framerates mean smoother, faster games with less stutter or freezing due to load on the CPU. The GPUs of modern smartphones are capable of rendering 3D games and a lot of effects easily and this allows developers to make better looking and more complex games as a result. The GPU also aids the CPU in its workload and makes your device more power efficient and faster altogether.

How important a powerful GPU is for video rendering?

When working with video editing software, at some point you will finalize your project, and will need to render the resulting video. While some video editors offer a really fast rendering speed, they often rely on your machine having a faster GPU installed.

To avoid a misunderstanding, quite often, you will be just fine with a faster quad or 8-core CPU, as the video editing is a more CPU intensive process. Indeed, if you decided to track your CPU and GPU load when rendering a video, you will see that most of the time your CPU will be completely occupied with the rendering flaw. Most of the algorithms used by video editing applications are using a CPU to execute themselves.Having that said, there’s a bunch of important effects and adjustments to your video frames, that does rely on a graphics card for faster rendering. We mentioned some of the examples already in the previous sections. These effects include 3d texts and shapes, color correction, and some others.Modern video editors (Adobe Premiere, Adobe After Effects, VEGAS Pro 17, PowerDirector Ultra 18, etc.) already support or allow enabling the CUDA or an OpenCL. Future releases of video editing apps will continue to utilize the GPU power for video rendering.

Generally speaking, the higher end your graphics card is and the higher VRAM it is equipped with (8 GB preferably), the better quality you can choose for the preview window.It’s not only that. In case your video project contains lots of graphics card intensive effects like 3d texts, color corrections, graphic enhancements, the more your GPU will affect the smoothness of your video production work.When having a lot of effects that rely heavily on a graphics card, you may require restarting your video editing tool quite often, after completing every single portion of your work. Otherwise, you may start getting errors of: “Not enough video memory”.Now, the preview of the non-rendered video that is still in development, would require some work from your GPU, not just the CPU alone. Most of the modern video editing software allows you to choose the quality, and a resolution of your preview video in the preview window. Depending on the amount and complexity of video effects, and on how powerful your graphics card is, you will be able to use a lower or a higher preview quality.

Post a Comment

Previous Post Next Post