Beavermatic
Senior member
- Oct 24, 2006
- 374
- 8
- 81
4x SSAA is probably a good approximation for 4k resolutions for a 1080p monitor. SSAA requires that the extra samples are fully rendered pixels so Its having to render 4k pixels, but with a little extra work of taking the 4 samples and averaging them.
Its certainly going to take a lot of performance to run games at full resolution, which is why I think 1080p 4:1 is so important for 4k monitors.
Correct me if im wrong, but technically running SSAA 4x at 1080p is equivalent to running your card at 4k, since SSAA would be sampling the image to 4x 1080p, which is what 4k is, and then sampling that "cleaner" image back down to 1080p.
So a good test of how your card will run at 4k is simply to set it to 4x SSAA at 1080p and see what performance you get, albeit it may be a frame off here or there. Although SSAA may be slower (possibly) because its doing a bit more work to scale the image up, and then output that image back to your current resolution, where as no overheard just running it at 4k directly.
Last edited: