What is difference between Filter and Quick Selection and fast selection in AutoCAD?

Filter is More Powerful than Qselect for finding and selecting the lines, colors, objects, poly line and many more...

very beautiful answer by Mr. يعقوب عبدالله عبدالواحد العمر. I endorse his answer. 

You can use QSELECT to select multiple objects, by color, layer, elevation, and many more object properties. You can build a selection set based on multiple criteria by using the append option or even exclude certain objects. 

The second method and much more powerful is using the FILTER command. You can build a multiple object property to filter to get just the objects you want then change all meeting the filter criteria  as a selection set in less than a minute.

I agree with Other Specialties. 

I agree with Mr . Yacuop answer ...thank you