Our tests show that the Intel HD 630 iGPU, present on the seventh- and eighth-gen Core i3, Core i5, and Core i7 CPUs, can run some less demanding games, especially Overwatch (read our analysis here), which proves it’s a finely optimized game. However, to play most games with the HD 630 iGPU, you must set the resolution to low and get less graphic detail.
However, our tests made it clear that the performance of a “real” video card, even an entry-level one like the GeForce GT 1030, is better (in most cases, more than twice) than the HD 630’s.
When we compared the performance of the HD 630 iGPU to a (still) basic video card like the GeForce GTX 1050, the performance difference was huge.
So, it’s clear that, even with the advances on the iGPUs, if you are talking about a gaming computer, simply forget about the integrated video and buy a real gaming video card.