https://wccftech.com/m1-macbook-air-two-gpu-core-variants/

Apple announced three new products under its ARM-based Mac lineup. One was the M1 MacBook Air, followed by the M1 Mac mini, and lastly, the M1 MacBook Pro. All powered by the 5nm M1 silicon, Apple boasted huge performance and power efficiency gains when compared against similarly priced Windows 10 notebooks. However, when putting up the new MacBook Air for sale, Apple didn’t provide all the details to its customers. One detail missing from the presentation was the new notebooks are available in two M1 configurations, each with a different number of GPU cores.

Visiting the M1 MacBook Air product page, we see a total of two models available. If you didn’t notice, Apple has discontinued all the Intel-based versions of the MacBook Air, with only the M1 chip versions available to purchase. If you take a closer look, one MacBook Air version features an M1 chip with an 8-core CPU and 7-core GPU, while the more expensive model sports an 8-core CPU and 8-core GPU.