It happens prior to the release of just about every device, if you're looking, as 9to5Mac was. iPhone 11 benchmarks have shown up on Geekbench, and the results are, well, pretty much what you'd expect.
It shows a device running iOS 13.1, which has a hexa-core processor and 4GB RAM. The base frequency listed for the processor is 2.66GHz. The single-core score is 5,415 and the multi-core score is 11,294, both modest improvements over last year.
Last year's iPhone XS Max got 4,798 and 10,731 when we tested it. For comparison, the Samsung Galaxy S10+ got 3,520 and 11,177, with the Snapdragon 855 not doing as well on single-core and beating out the A12 on the multi-core score.
That's how it goes, though. Apple releases new iPhones with its new chipset in the fall, and then Qualcomm gets ahead in the spring with its new Snapdragon chipset. It just goes back and forth like that.
It's worth noting, of course, that Geekbench only tests the CPU. These scores do not reflect graphics performance, or anything else outside of the CPU.