[paulmd]

you can calculate the area of the tensor and raytracing units by measuring+comparing die sizes between the nearest 20-series and 16-series chips. Contrary to the assumptions a lot of people made from the cartoon diagrams, it's actually relatively small, together they make up approximately 18% of the cluster area and it's below 10% of the chip as a whole. The area is roughly 2/3rds tensor unit area and 1/3 raytracing unit area, so RT is around 3% of total chip area and tensor is around 6%.

https://old.reddit.com/r/hardware/comments/baajes/rtx_adds_1...

This could have changed somewhat in newer releases, but probably not too drastically, since NVIDIA has never really increased raw ray performance since the 20-series launch. And while there have been a few raytracing features around the edges, raster and cache have been bumped significantly too (notably, ampere got dual-issue fp32 pipelines... which didn't really work out for NVIDIA that well either!) so honestly there's a reasonable chance it's slightly less in subsequent architectures.