thanks for your reply. I'm fairly new to overclocking so not very much knowledgeable.
If I understood correctly, graphics cards manufacturer provide different versions of a same GPU , with different coolers, video output support ...
Gigabyte for instance apply by default a certain overclock to their cards. Looking at their website, the model I have (https://www.gigabyte.com/Graphics-Card/GV-N207SWF3OC-8GD#kf) is supposed to be running at 1785 MHz core clock. However the Aorus model (https://www.gigabyte.com/Graphics-Card/GV-N207SAORUS-8GC#kf) is supposed to run at 1905 MHz core clock.
Is it possible they just apply the wrong (better) OC to the card I have ?
And anyway it shouldn't make any difference since I pushed it higher and could have reached the same results with the same card at 1785 MHz default core clock ?
Also adding my detailed specs:
CPU: AMD Ryzen 7 3700x with stock cooler
RAM: Corsair Vengeance LPX 16Go (2x8Go) DDR4 3000MHz
MB: Asus rog strix b450-f gaming