Perhaps from the Apple announcement video?
Personally, I am eagerly awaiting head to head comparisons from the usual suspects for more granular data.
Update: I just saw this on Notebookcheck.net:
"The Apple M2 Pro scores 1,952 and 15,013 points in the Geekbench single and multi-core tests, respectively. That represents a 10% increase over the last-gen
M1 Pro(1,769/12,499) in single-core performance and a 20% increment in multi-core. Even the better-specced
M1 Max (1,780/12,656) falls flat against the M2 Pro, although an apples-to-apples comparison between the two would be unfair given the latter features two extra E cores.Furthermore, Geekbench is a CPU-intensive test and the M1 Max will almost certainly flex its muscles in a more GPU-bound scenario."