The 21-year-old will face world number one and defending champion Swiatek in the quarter-finals after the Pole defeated Elise Mertens 6-3 6-4.
Swiatek, who is on a nine-match unbeaten run in Stuttgart, has a 2-0 win record against Raducanu.
It’s a match where I have nothing to lose, I can just swing and enjoy it, the Briton said.
We played here two years ago in the quarters, so it’s exactly the same. I’ve come a long way in two years, I’ve matured a lot and she has obviously achieved so much.
Raducanu has dropped to 303rd in the world rankings after an injury-hit 2023 season, in which she had wrist and ankle operations.
Following Wednesday’s win against three-time major winner Angelique Kerber, Raducanu continued her return to form with a no-nonsense performance against Noskova – hitting just just seven unforced errors to the Czech’s 31.
The 2021 US Open champion raced through the opening set in just 29 minutes, saving two early break points on the way.