Hi redbaron1,
Look for a good interface though, as mentioned. An Audiobox, or on par a Focusrite Scarlett certainly are not low on the quality list. However, there certainly is crap to be had with some audio interfaces, so look for a reputable one. Preamps, along with the DAC quality are key, and a number of mfr's cut corners that don't make the grade, if you're truly looking for pristine quality. I could name some real dogs, but I won't. No, Audio interfaces are not equal and you'll need to look into that. You won't have to spend a pile of dough, but know prices vary (as also mentioned) and it's just not due to someone's imagination. Darren provided a nice and affordable audio interface option as well.
Secondly, all the supporting input of looking at those other things are complimentary such as some descent yet affordable large diaphragm mic's. Also the whole gambit of good recording practices. Your DAW largely won't limit quality in any way, and on the other hand will reveal any garbage in/garbage out of other equipment, or you. The Realtek drivers are a non issue. A good interface and with good mic(s), and good recording habits should be the target.
One good way to quantify "good" or "good enough", is to provide a sample of what it is you're hearing.
Good luck! Hey, we all have our budgets, so you can get great help from "our friendly staff".