Rendering settings for print resolution renderings

[ingoerik]

I usually render at 1280x960 for previews and when everything is okay and the client likes it i render at 4000x3000 pixel. Do i have to change render settings for the higher resolution, or can i change settings for faster rendering ?

[Svetlozar Draganov]

It depends from your needs. If the quality is sufficient enough there is no point to increase settings since this will also increase render times, if not however you'll have to bump some settings in order to get better results.