Which driver should I install?

"My motherboard doesn't have an on-board graphics, the cpu has an integrated graphics"

You have integrated graphics either way. Whether it's on the CPU die or built onto the motherboard, it amounts to the same thing. With the exception of some AM3+ boards, IGP's that are built onto the motherboard haven't been a thing in close to a decade.

" I came across a driver for "VGA" from motherboard's website, there is also a driver from the Intel website. So I'm confused which one should be used. "

Chances are either will work, and they are likely the same driver anyway, but the one from the mobo manufacturer's website would be the one I would use.

Grab the ones from Intel, normally they have the updated version than the one the motherboard manufacturer has

Why not go to ECS website and download the driver from their support area????

Whichever one works, stops there don't bother do comparisons see which gives better performance, as integrated is poor to begin with.

Why are you stressing this download and run the driver booster made by iolo this particular piece of software contains ads but it does the job absolutely wonderfully don't take the free upgrade don't accept the free gift don't accept any nonsense just to get the job done and let it find and install all of your drivers then restart your computer and uninstall the thing I do this every day for a living and I would not be telling you that it works if it does not

Integrated Graphics means there are graphics on the motherboard, the motherboard has a built-in video card.

It is too obvious that you have absolutely no idea what you're doing so you have a 99% chance of turning this computer into a boat anchor.

Which is a good thing if you have a boat that needs an anchor.

Have someone that knows what they're doing do this for you before you destroy the computer.

Use the one for the CPU s integrated graphics. CPUs that are on the same socket don t always have the same integrated graphics. Just for example, the i7-7700K has Intel HD 630 but the Pentium G4560, even though it s still LGA1151 and even from the same family as the 7700K, has Intel HD 610.

The motherboard and the intel drivers are probably one and the same, it will make no difference

Always download drivers such as this from the motherboard site.