Jason's tests are on a 16-inch.
"I’ve been able to spend nearly a week with a 16-inch MacBook Pro with an M2 Max processor"
The higher base frequency would surprise me. That's possible, but for now, I assume the entire M2 line-up runs at 3.5 GHz.
As for the higher score: that's a 2.8% difference, which with Geekbench is unfortunately well within the margin of error. For example,
take these scores for the 13-inch Pro with M2. The first page has scores ranging from 1769 to 1951, a whopping 10% difference. So I wouldn't read too much into that.