A:Answer My CPU is going at a constant 3.49 GHz. That's the highest speed that is shown on the specifications for the i7-7550u, which I'm satisfied with. My S510UA, and I think that specifc model in general, does not come with a discrete graphics card (e.g. NVIDIA GTX 1060), instead this laptop uses integrated graphics. As for the overclocking.. it is possible to overclock this i7, however, I'm not entirely sure this laptop will provide enough cooling if you go too far ahead.
If you're looking for a gaming computer, this isn't my first choice. However, The S510UA is a pretty powerful computer that can do many things smoothly, including running multiple Virtual Machines.
I hope this helps!