Will increasing samples reduce fireflies? Will increasing the samples eliminate fireflies? I know that the question of reducing fireflies has been already asked, but i want a straight answer on whether it will help or not.
Just posting for empirical data:



These renders are at 2000 samples with a Sun Lamp pointed at an Icosphere with 100% glossy shader... just to demonstrate differences between firefly reduction techniques:



For noise reduction, see this answer: https://blender.stackexchange.com/a/84326/38953