You do not say what resolution your screen is. A 1920x1080 system will need less (graphics) horsepower than a 4K system. Running games mostly depends on the graphics card, no so much the CPU. However, if the CPU is old or slow, then that can impact gaming, too. Your system has no such problem. If you decide to upgrade, remember to buy a 6th or 7th generation core-i7. However, you will only get hyperthreading extra, probably not worth it. If you really want to upgrade you will have to buy an 8th Gen (6 cores), or 9th Gen (8 cores) CPU. I would say it is not worth doing that yet (you would also need a new motherboard for 8th or 9th gen). Wait until you experience problems in a particular game. Even then, upgrading the graphics card would...