Hi all, I hope someone can provide suggestions. I have ASUS TUF GAMING Z790-PRO WIFI. The board already had HDMI and DP ports. I don't play. Just normal surfing and watching 4K or 1080P and video editing only up to 1080P using Cyberlink PowerDirector. I have an old card, Sapphire Radeon RX 580 8GB (Polaris 20). Which one is better, ASUS onboard graphic or RX580? Performance, picture quality, no lag, etc? The reason I ask is using the RX580 DP port sometimes causes the monitor to say there is no signal. I changed the DP cable, and sometimes the issue came back. I google, and a few had the same issue as me but only a temp fix.