Probably "grainier." But I started with LF in 1999, so it's not like I have a personal reference point for actual use of in-date 1985 Tri-X. It's good fodder for my pinhole camera, though!
I can only say that it is fine for what I do with my camera. However, I do have plenty of in-date TMax and Tri-X in 4x5 and 8x10! (And E100G in 8x10!)
Sometimes I wonder if the fogging issues are due to local background radiation instead of stellar radiation. Since I don't see fogging with "ancient" film in my local area, it's a working hypothesis for me. Of course, I'm not going to be carrying out any experiments!