If it's just for gaming you're not getting any benefit from the 5900X or the 3080. As suggested above, in CSGO at around 1080p the 2060 is going to smash your requirements. The 3080 is a huge waste of cash and time.
No matter the game or use, the 3080 is a massive over-spend for 1080p.
A sensible buy at this level would be the 5800X with the 2060, earmarking an upgrade to the next iteration of the 3060Ti at the next juncture.
This would allow you to prop up the rest of the build.
BTW, regardless of the CPU you choose.... cooling is going to have a massive impact. You really need the H100i RGB Platinum/Capellix on either of those chips. Just thinking that it's something you may have restricted your spending on when it's really unwise to do so.
No matter the game or use, the 3080 is a massive over-spend for 1080p.
A sensible buy at this level would be the 5800X with the 2060, earmarking an upgrade to the next iteration of the 3060Ti at the next juncture.
This would allow you to prop up the rest of the build.
BTW, regardless of the CPU you choose.... cooling is going to have a massive impact. You really need the H100i RGB Platinum/Capellix on either of those chips. Just thinking that it's something you may have restricted your spending on when it's really unwise to do so.