A:AnswerWell yeah
I'm pretty sure this parts are upgradeable and removable. Not only graphics card you can also change the ram,processor,storage, and etc.
A:AnswerTo answer your question, you shouldn't have to do any downloads for the pc to work when you get it as they will have already installed windows and some other programs on there. The only installations you might have to do are drivers for the graphics card and maybe a windows update or two.
A:AnswerHello. Thanks for your question. This HP OMEN 25L GT12-0024 computer has the Dorado motherboard. Here is more details: https://support.hp.com/us-en/document/c07243104
A:AnswerHello Ricalm10. Thank you for your question. Based on the information provided by the manufacturer, this HP OMEN 25L GT12-0024 Desktop PC comes with an NVIDIA GeForce GTX 1660 SUPER FH (6 GB) graphics card. You can check more technical specifications about this desktop system here:
***https://support.hp.com/us-en/document/c07243104***
Thank you for choosing Intel!