Sony fe 14mm f 1 8 gm vs samyang af 14mm f 2 8?

Here is what the site says about that.

From Sony FE 14mm f/1.8 GM: Sony FE 14mm f/1.8 GM: A prime lens by Sony for Full frame cameras, 14mm f/1.8. Specs - Maker: Sony - Focal length: 14mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 14mm. - On APS-C (Sony E): like 21mm on full frame; f/1.8 gives about the depth of field ...

From Samyang AF 14mm f/2.8: Samyang AF 14mm f/2.8: A prime lens by Samyang for Full frame cameras, 14mm f/2.8. A full-frame autofocus ultra-wide; the RF version was short-lived. Specs - Maker: Samyang - Focal length: 14mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Sony E, Canon RF - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Canon RF): as marked, 14mm. - On APS-C (Sony ...

Quoted from this site's pages.