The Xiaomi Redmi Note 9 Pro is expected to be powered by a Snapdragon 720G chipset. But what about the non-Pro model? Geekbench may have given that away, two days before the official launch on March 12. The Xiaomi Merlin - suspected to be the vanilla Redmi Note 9 - ran Geekbench v5.1 with what appears to be a MediaTek Helio G70 chipset. It couldn't go as high as the score of the Pro model, which uses the aforementioned 720G chip. Geekbench v5.1: Xiaomi Redmi Note 9 ("Merlin") Redmi Note 9 Pro Long story short, both have two "big" cores, but the Snapdragon uses Cortex-A76...
Source: https://www.gsmarena.com/the_redmi_note_9_may_use_a_helio_g70_the_pro_model_will_have_a_snapdragon_720g-news-41922.php