They were caught fudging the numbers in favor of Intel cpu's not too long ago.
I know we're not explicitly talking CPU but still... that's some shady shit, and I wouldn't trust the data.
Gamersnexus videos are kinda long but they also have a bunch of their informational slides over on the GN site.
Also we can compare scores from like... cinebench, 3d Mark, etc and interpret that.