You’re right - something learned today:
“Nvidia Deep Learning Anti-Aliasing (DLAA) is an anti-aliasing feature that uses the same pipeline as Nvidia’s Deep Learning Super Sampling (DLSS). In short, it’s DLSS with the upscaling portion removed. Instead of upscaling the image, Nvidia is putting its A.I.-assisted tech to work for better anti-aliasing at native resolution.”
Nevertheless, this does not change the fact that choosing DLSS mode does not require you to select any resolution as it renders at lower resolution than one’s monitor and provide you the pictures in your native resolution.
FPS gain is system-dependent, on my system FPS are slightly better with DLSS:DLAA than TAA, other DLSS modes such as quality and balanced are unusable for me because of the unclear cockpit textures and displays, tapes, etc…
TAA for me is unusable because of outside artifacts, blurry fences and shimmering lines which is why DLSS:DLAA is my mode of choice at this moment. DX12 performance is worse than DX11 on my rig. To mention is that I have a AMD Sharpening set to 150 and Image Sharpening set to 20 within NVCP. Overall I am happy with the performance but will upgrade to a AMD 5800x3D in the future, currently running an i5-9600k at 5.1 GHz combined with an RTX 2080 SUPER.