Yeah, it will be. Always most likely, problems is that in 5 years the games will be more demanding and not in the VRAM department. The GPUs themselves will be lower. That's why for 1440p, just get 1 gtx 980ti now, it will do everything for the next 2 years and then once you find it insufficient, either upgrade to newer technology or find an old gtx 980ti cheaper. No point in getting two of them for 1440p.