compiling at different frequencies

Mahender,

What I can think of is you can manually duplicate the design and change the frequency in sdc in each of the duplicated design according to what speed you wanna run.

@SyafieqS ,

will changing the clock frequency in sdc file effect the resource utilization or it only for timing analysis like for setup and hold time violations info.

I believe it only affect for timing analysis setup and hold.

Instead of manually duplicating your whole project, use the Revisions feature, using the same design files for each revision, and specify a different .sdc file for each revision.

Resource utilization will not be different unless different optimizations are performed in order to meet timing, which is entirely possible depending on what you're trying to do.

Mahender,

May I know if there is any update/concern on this?