Which graphics settings have the biggest impact?

[AskAi]

I've lowered it from Ultra to medium and the looks are VASTLY different but I go from 51 fps to 55 fps by doing that.

[V0lcanF1re]

assume shawdow, but remember the amount of dinos effect it too

[stuzy46]

try some custom settings.good textures and lower shadows and so on.Just mess around until you find what's good for you.

[AskAi]

Actually was getting 50 some FPS no matter what I did with settings. Disabled steam overlay due to it crashing another game and now im getting 100+ fps on maxed settings. Just thought I should post this in case any one else is experiencing fps problems.

[Jaded]

Another thing that can be a big hit to performance is the 'wet' look on things when it rains.
I've heard the Steam Overlay solution before as darthbored suggested

[Moro]

Originally posted by darthbored:

I've lowered it from Ultra to medium and the looks are VASTLY different but I go from 51 fps to 55 fps by doing that.

Anti-Aliasing. -- if you have an issue with your FPS turn this option off first.
Post Processing - this would be things like Anistropic which is similar in effect to AA. turn it off next if you have issues.
Shadows -- this has always been a big hit to your FPS turning it off always does something...but makes things look rather unrealistic because no shadows . if you have good enough FPS setting this to Low can help

Various:
Atmospherics, Reflections, and Water -- these sorts of things do affect your FPS to a degree obviously (more so the water,reflections, and translucent type of effects) but usually they arent going to be globally impacting. for instance you arent going to see water reflections all over the map dropping your frames or your frames may only drop really when it rains.

Texture Quality/Detail -- these are mostly going to affect you hardest if you dont have a lot of onboard memory for your graphics card. i.e you have a pitiful 2-4GB media capable card instead of a 6GB+ card. this really matters because when a game loads up all its textures many times it can load up 4GB easily as i have seen.