You can choose between two M4 chip configurations for this MacBook Air. Both are fast and capable, with a 10-core CPU and a 16-core Neural Engine. And both chips allow you to configure your MacBook Air with up to 32GB of unified memory.
The difference is in the number of GPU cores. One chip has an 8-core GPU, while the other has a 10-core GPU.
If your work or play is more graphics-intensive — for example, if you edit high-resolution photos or if you enjoy gaming — you may benefit from more GPU cores.