It's probably just me being out of touch, but I don't think the GeForce RTX 4000 or 5000 series really mattered/matters that much. At the same time I'd add the S3 ViRGE and the Matrox G200. Both mattered a lot at the time, but not long term.
Recency bias probably, Iirc I think the 3000 and 4000 series did make significant improvements on RTX performance so compared to the 2000 series it's far more useful today.
it seems to have helped path tracing by a lot.