Skyrim antialiasing and ansiotropic filtering?

I play on a low end LAPTOP. My PC runs with i3 and I honestly don't know the graphics card at all. I've always played skyrim on low settings. But today I tried something. I kept it on low, and turned the textures and decals to high. Nothing else. My game looks sooo much better and performs the same as far as I know. I Was doing the final mission of the main quest at the time so I went to sovngarde and that Nordic cave and ran fraps to see my framerate. I ran at 45 fps and sometimes dropped to 30. So my question is, how much more of the graphics settings can I turn up (like my view distance and stuff like that) until my performance drops? Thanks in advance!