Mali-T820 @ 600 MHz entry level GPU is working in mobile SoCs which are used in tablets and smartphones, released in 2015. The GPU produced by a 28 nm process. Mali-T820 has core working at 600 MHz and works with graphical data, or more simply the GPU helps games look good and more beautiful and pleasing to the eye, for example Call of Duty, Fortnite, Asphalt 9, Madout2, PUBG, GTA, Minecraft and many others. You can find out whether Mali-T820 @ 600 MHz GPU is good or bad by looking at comparisons with other graphics processing units and testing results.
Vulkan 1.1 OpenGL ES 1.1, 2.0, 3.1, 3.2 OpenCL 1.1, 1.2, 2.0 Full Profile
Additional information
Adaptive Scalable Texture Compression (ASTC): Low Dynamic Range (LDR) and High Dynamic Range (HDR). Supports both 2D and 3D images AMBA4 ACE, ACE-LITE and AXI Arm Frame Buffer Compression (AFBC): Version 1.3 4x4 pixel block size