A CPU with 3.16 GHz clock is usually one of the more powerful models, but of course many other features influence the final performance. Also pay attention to the architecture, the caches and the number of cores. This is the only way to assess the possible performance that will ultimately benefit you.
In addition, when buying a used 3.16 GHz processor, of course, should be considered compatible with the respective system. This can usually be found on the basis of the manual or the data sheet, where, for example, the base used is listed on the main board. In case of doubt, however, check also the further details of the respective manufacturer.