As title I keep seeing GPU is more important as it's more GPU bound at 4k when people want to get better performance out of their games at 4k. Some people are still running 2500k and are being recommended to keep them overclocked and get a better GPU. But when does it get to a point that a CPU must be upgraded to get better frame rates in 4k gaming? In a funny way 4k could be a good platform to have if your on lowish budget as you will just need to upgrade your GPU if you have a 5 year old system already. I know GPUs are expensive but you could be quite happy on a Vega 56 or a Nvidia 1080. I don't have 4k yet myself so this is just coming from stuff I read on here and lots of YouTube reviews.