Hey Vik,
Everyone has different thoughts, and different advice, in my point of view,
Based on your project requirements and current setup, upgrading to a Ryzen 7 5700G would be a significant improvement and should allow you to preview your timeline at a higher resolution without any issues. This processor has a higher core count and clock speed than your current i3, which should greatly improve your editing and rendering performance.
Additionally, since you’re working with an integrated GPU, the Ryzen 7 5700G’s Radeon Vega 8 graphics should provide a decent performance boost for graphics-intensive tasks such as color grading and effects. However, as you mentioned, a dedicated GPU like the 1660 Super would provide even better performance and should be considered in the future.
Regarding Intel Quick Sync, it can be a useful feature for accelerating certain video encoding and decoding tasks, but it’s not necessary for your project requirements. Since you’re primarily working with short-format films and motion graphics, your focus should be on optimizing your CPU and GPU performance for editing and rendering.
Overall, upgrading to the Ryzen 7 5700G is a sensible choice that should provide a noticeable improvement in your editing and rendering workflow. You should also consider upgrading to a dedicated GPU in the future to further enhance your performance.
Shahan.