Not exactly sure what you mean by this, but generally an 8 core will have more overall power than a 2 or 4 core, but this doesn't necessarily translate to gaming, since there are really no games that are optimized for more than 6 cores, with most being optimized for around 4.
Although an 8 core is usually much faster than a 2 core CPU, an i3 7350k actually beats a couple of the fx 8 cores, even in something like cinebench which uses all cores fully.