Raducanu won 6-0 7-5 with ease in just 81 minutes of play.
After the Pole defeated Elise Mertens 6-3 6-4, the 21-year-old will now play the world-number one and reigning champion Swiatek in the quarterfinals.
With a perfect nine-match record in Stuttgart, Swiatek has a 2-0 winning streak versus Raducanu.
“It’s a match where I have nothing to lose, I can just swing and enjoy it,” the British player stated.
“The quarterfinals are exactly the same as they were when we played here two years ago. In just two years, I’ve grown significantly and matured, and it’s clear that she has accomplished a great deal.”
Raducanu suffered wrist and ankle surgeries during her injury-plagued 2023 season, which caused her to fall to 303rd in the global rankings.
Raducanu maintained her form after defeating three-time major champion Angelique Kerber on Wednesday by playing a disciplined match against Noskova, making only seven unforced errors compared to the Czech’s 31.