Question: is msaa needed at 4k?
Answer: 4K gaming with 2x MSAA enabled. In actual gameplay, 2x MSAA is just as good at 3840×2160 as 8x is for 1920×1080. Our tests in other games bear this out — while some titles need AA more than others, it's just not as necessary at 4K as it was in 1080p.