I was hoping someone more experienced than I can teach me a bit more on how I should be optimizing my game settings with my GTX 970.
 
I've been experimenting with DSR and MFAA on a 1080p monitor as the title suggests.
 
My understanding of 4x DSR is that it is not quite as "true" to the visuals of a 4k monitor, but it is similar both in performance hit and in visualization when the pixels are compressed on a 1080p monitor.
 
As I experimented, I am obviously not able to max out ultra settings with max anti-aliasing and throw on 4x DSR without taking a large performance hit.  But then I played around with settings, IE I took anti-aliasing down and compared screen shots.  Unless my nose is right up to my monitor, I cannot tell the difference most of the time when at 4X DSR, whereas at 1080p the difference is quite obvious.  Is this because my monitor does not have the capability to show me the visual difference, or is the increased resolution negating the improvement seen with anti-aliasing?  I ask this because I can get decent performance and visual quality at 4x DSR with MFAA or other less intense anti-aliasing....this brings me to my next questions.
 
I understand MFAA is it's own anti-aliasing technology.  I see it being compared to MSAA in terms of turning on MSAA 2x and using MFAA to get the "visual quality of 4x MSAA" with less performance demand.  Does MFAA also work in conjunction with other types of anti-aliasing like TFAA?  Does it work with SSAO/SSBO?  Will MFAA enhance visuals when used alone?  Are there combinations of MFAA and "x" that I shouldn't use because it's either not enhancing visuals at all or utilizing more resources than necessary for little improvement in visuals?
 
Thank you in advance, hopefully someone understands my weird questions and can make some sense out of this.
 
Regards,
Marc