If your computer is using your i7 for graphics, that means that you do use integrated graphics. If you are using a separate graphics card that means you don't use integrated graphics. A quick way to check this is to open up task manager (CTRL ALT Delete), then click on more details. Next click on performance. Finally, click on GPU. There you will see what your computer uses for graphics. If it says anything with Intel then it uses integrated, but if it says Nvidia or AMD and you're on a desktop, then you are most likely using a separate graphics card. If you have 2 tabs that say GPU then you might need to set CCD to use the graphics card and not the integrated graphics. I have added some screenshots to guide you through the steps to check your computer's graphics. One more quick thing, make sure you are using a desktop because most of the time laptops use integrated graphics even if it says Nvidia or AMD. I hope this helps!