MediaTek unveiled the Dimensity 820 chipset, a more powerful version of the Dimensity 800. Compared to the old chip, the new version increases CPU and GPU performance and improves the 5G connectivity. This is still a 7nm chip with four Cortex-A76 and four A55 cores. The difference is that the big A76 cores run at a higher clock speed, 2.6GHz. Up to 16GB of LPDDR4x RAM can be connected. The Mali-G57 GPU gained an additional core, now up to 5. This should bring games closer to the 120Hz refresh rate that is supported by the chip (when paired with the right display panel, of course). It's...
Source: https://www.gsmarena.com/mediatek_dimensity_820_unveiled_higher_cpu_clock_speeds_extra_gpu_core_5g_dual_sim_support-news-43254.php