Arduino for STM32

I have question about the 2 cores too, is there a test for performance? Which one is overall faster? And the storage/memory consumption? Roger's core uses a lot more RAM and Flash to build the final binary file. In this matter, STM32 Official Core is way better, thus if your sketch needs RAM space,...

I have question about the 2 cores too, is there a test for performance? Which one is overall faster? And the storage/memory consumption?