Quality settings?

[solodesign]

This is the case:

If I let Render => Quality Settings to default:

Samples (4-256): 16
Ray Bounces (0-64): 6
Anti Aliasing Level (1-8): 1
Shadow quality (1-10): 1
Global Illumination Quality (1-5): 1

and render the image to its maximum (2375 width with a Pixel Filter Size of 1), my rendering time is 73 seconds using an HP Z400 Workstation.
If I raise Anti Aliasing Level to 8 I render the image in 83 seconds but if I raise also Shadow Quality to 10 I get more than 10 minutes.
In the scene there is just a table and a cabinet, environment is default studio.

Which values do you suggest to raise to get a better image and still have a render time under 5 minutes?
Which is your best value combination?

Thank you.

+

[guest84672]

Increase your settings one step at a time, and compare the results. Shadow quality hardly ever needs to be higher than 2 - 4. Anti-aliasing will have little effect not unless you have reflective materials that are positioned almost parallel to the camera. And if you increase the AA setting, you will also need to increase the samples.

Thomas