This has been a debate for years. "How can I replicate browser looking fonts in Photoshop? It always looks blurry."
Well. This is still a problem, particularly with Windows. The text in Photoshop is not the text on the web. ... Also, type in Photoshop never seems to be the right size as type in HTML. It just never seems to feel the same. It doesn’t wrap the same, it doesn’t space out the same. It is the ClearType smoothing from Windows.