Hey I would recommend a top of the line 4k monitor cause honestly with new graphics cards and how strong pcs are becoming id get the top stuff so you can still use it for another 3-4 years with no problems. Also when getting a moniter look for something with a warranty that's 1-2 years incase something dumb happens.
@lukenewman18 one of my buddys has a 3060ti and he has a 4k monitor and he says he has no issues.
3070 would struggle with 4k gaming on AAA titles, however the competitive games like csgo/rocket league/dota should be doing pretty good. But 4k gaming monitors still sit on a high price tag, I would say that as for now the 1440p AAA gaming is the sweet spot, and it's much more affordable and less in gpu requirement
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