0805 vs 0603 capacitor

[joersam24]

With the same capacitance and voltage rating. Is 0805 capacitor has an advantage compare to 0603 in terms of performance?

[mariush]

See this thread that explains some of the potential differences between sizes: https://www.eevblog.com/forum/beginners/difference-between-1206-and-0603-cap/

Also see this application note, especially the graphs towards the bottom: http://www.maximintegrated.com/app-notes/index.mvp/id/5527

You really have to look at the datasheet of each resistor and consider the dielectric type, the derating for a particular voltage and other things. With just this basic information available (0805 vs 0603 one can not tell you that one always wins over the other)