As you probably already know, Apple unveiled four new smartphones yesterday - the iPhone 13, 13 mini, 13 Pro, and 13 Pro Max. They're all powered by the A15 chip, but there are GPU differences between them. While the iPhone 13 and 13 mini have a 4-core GPU, the iPhone 13 Pro and 13 Pro Max, along with the new iPad mini, have a 5-core GPU. This A15 chip with a 5-core GPU has been tested on Geekbench's compute benchmark using the Metal API today, by someone in possession of an iPhone 13 Pro prototype. The resulting score is 14216, which is about 55% more than the iPhone 12 Pro's 9123....
Source: https://www.gsmarena.com/iphone_13_pro_runs_geekbench_reveals_55_better_gpu_performance_compared_to_iphone_12_pro-news-50965.php