https://wccftech.com/ipad-mini-6-features-5-core-gpu-like-iphone-13-pro-max/

Earlier, we reported about one disappointing aspect of the iPad mini 6. It features an underclocked A15 Bionic, which led to the A14 Bionic beating it in several single-core and a couple of multi-core tests. Fortunately, Apple made no such comprises on the GPU side as the tablet sports the same 5-core configuration as the more expensive iPhone 13 Pro and iPhone 13 Pro Max.

As far as we can remember, Apple did not use binned A-series chipsets for its iPhones, though it did maintain that practice with its iPad series. In 2021, that changed, and apart from the iPad mini 6, only the top-tier members of the iPhone 13 series feature a 5-core GPU in the A15 Bionic. We feared that if Apple chose to underclock the A15 Bionic CPU for whatever reason, it might use a 4-core GPU for this premium tablet too, likely for cost-saving purposes.