Though Core i3 CPUs serve as the entry point of Intel's Core processor lineup, they still can take on gaming. If you have an older Core i3 chip with just two cores and four threads, it might seem even less capable. But you don't need to have mid-tier gear for PC gaming.
Is an i3 processor fast enough?
Core i3 will be sufficient for people who want a PC that's faster than an Atom-powered tablet or laptop, but don't want to spend any more than they have to. Core i3 CPUs also tends to be less expensive than Core M processors, which focus on longer battery life and are found in slimmer, fanless form factors.
Is i3 processor good enough for Windows 10?
Yes, Intel I3 is sufficient for running windows 10 in your system. any other previous generation. So it will be good enough for your Windows 10.