Along with what the previous two commenters said, I'd like to make the point that for a gaming machine, the new Intel i5-10600k is actually a really compelling option. It often matches or comes the i7 and i9 CPUs in gaming, or comes very close. If you're making this build specifically for gaming, I'd drop down to either the 10600k or a Ryzen 5 3600X and upgrade your GPU to something like a 2070 Super. The mid-range CPUs are more than sufficient for gaming even on the very high-end cards, and being able to put more money into your GPU will give you better performance overall.
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