Onboard graphics these days are surprisingly capable of handing a lot of modern graphics processing. You might want to start with a computer with onboard graphics, and see how it handles UE4. If you find that it doesn’t handle UE4 the you could always dish out the money to upgrade and buy a graphics card. It also depends on what you’re kids will be doing in UE4, and if they are new to the program (which is what it seems like), then they probably won’t be pushing the computer to it’s limits. Maybe as they learn more and become more capable with the software they might push it further technically speaking. I would look into researching onboard graphics and seeing what they are capable of. There are a lot of Youtube videos that will show you what Intels onboard graphics can handle. Which most of them can run games like Skyrim with full graphics settings.
What do you guys think? Can anybody comment on how UE4 will handle on onboard graphics? Also, don’t skimp on the Processor, at the very least invest in a mid-range processor (Intel i3 or above). You can always upgrade things like RAM, your graphics card or even HD easily, but upgrading your CPU isn’t quite as easy. Do yourself that favor and buy a computer with a good processor at the very least.