AgentX20 i use gtx 1660s inno3d gddr6 samsung, fine for me. When i switch to gtx 1660s asus tuf gddr6 hyenix and gtx 1660s inno3d micron,hyenix make me eye strain. Now i use rtx 3070 zotac gddr6 samsung and fine for me. In my experience, gddr6 samsung more comfortable for eyes