Typically vintage cpu parts like processors aren't worth much. They're just outdated tech unless you find a hobbyist who is a collector or uses them for craft projects. The vintage chips that would actually have some value would be ones that were somehow special. Part of a first run, an old engineering sample, the first of something - such as the first x86 cpu or first cpu used in the old original apple, the very first produced pentium etc. Something that makes it rare and marks a milestone and then only worth something to collectors interested in such things.