They very much put some numbers on performance in the keynote, you can go back and watch it.
The Max:
10.4 tflops
327 gtexels/sec
164 gpixels/sec
The Max:
10.4 tflops
327 gtexels/sec
164 gpixels/sec
465 Gtexels/s
164.2 Gpixels/s
if those numbers from Apple are real -- that's bonkers