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i agree a 1660ti would be too much for the 2200g you mentined, even vega 56 may struggle with that cpu, personaly knowing that i'd suggest either a rx 580 or a rx 590 as at 1080p you'll get sold performace that wont botttleneck either rx card or the cpu if you set a custom fps curve then games played wont run into any issues, a good 60fps should be achevable