A:Answer depending on the power consumption, this computer has a 8 pin from the power supply, any graphics card higher the than RTX has dual 8 pin, this will be a limitation... The computer was made to work with this gpu based power and the CPU the psu can provided, higher graphics cards us more power, so a higher grade power supply will be needed, also this psu is only 12volts with a 10 pin motherboard connector, unlike standard 24 pin motherboard power connect...... Based on the current power supply and the motherboard requirement, I do not recommend a higher graphics than RTX 3060 , but you can go lower, and take the 3060 for another build.....
I did this, I put an I3 12th gen and 1660 super in this build and used the the I7 and 3060 in my existing build, since it was cheaper to buy the prebuilt with these parts.... so now got two computers for the price of upgrading....