Erikals, if your GTX card can handle it, I think you may be just on the limit, the lowest card you can use though.
Edit..I do think this guy is using lower cards not even recommended, 1020?
But, I would suggest to install the latest Krita version, install the AI generative plugin and start to play with that, you can do as many AI art kreations as you like without being limited to how many images you can create with the online AI tools that is out there for free.
So this I think is a much nicer alternative than the free online ones.
It can be a bit slow..and in the beginning a bit tricky to how to get going, so I suggest watching some youtube tutorials.
My first text inputs for a for a few images, I was quite pleased with, I just need to learn to text limit and expand what I want.
Just tested line art backgrounds as well in the live mode, so you start with an image instead, and it maintains the original line art, but can add backgrounds and also colorise the line art, so that is looking great.
I still haven´t tried my own 3d images or direct input with drawind "scribble" and so on..so that is coming up, but I need to evaulate what is happening there.
An image of the thundergod Thor above clouds in a chariot, came out like the typical Marvel Thor riding a horse instead of a chariot, but over some nice clouds, to it did a nice job of creating a nice image, but to Marvelized and not fully accurate to what I ordered.
Also..it seem to do Digital art better than photos, like if you were to command it to, create an audience full of people, you can rest assure there will be faces that looks like monsters ..it just don´t handle that well, but if you command it to depict single figures, humans in digital paint style, it seem to do that better..not the photorealistic ones though, so there is some difference when ordering painted art, or photographic images in that sense..
Since you do not have the latest Photoshop versions with AI, this may be something to use..or continue with the limited free online ones, or prescribe to those.
So..this is the result with a simple text command on top of the line art, just as done in the video.
"orange cat, in red flower garden"