Buckets load and unload data before they render their part of the image, which takes time.Why is this so? There a few reasons that explain this general principle: And based on the tests we’ve run, the bigger the bucket size (meaning more pixels for each bucket), the faster the render time. Buckets affect rendering timeīuckets are basically a group of pixels. If this isn’t all that clear to you, you can learn more about the relationship between rendering and CPU cores from our article that explains what is a render farm.
If you are using a render farm like GarageFarm.NET for rendering, you get access to more processors and therefore more buckets that are simultaneously rendering an image resulting in faster render times.