In this wonderful post by a Reddit user u/brandude87, he compared the size of Tesla Giga factories graphically, placing them next to each other for perfect size comparison.
Giga Texas is a 2,000-acre site, and Tesla has already started the construction work. From the image, in my opinion, we could still see another Gigafactory in Asia, and I believe it will be a bigger one than Giga Shanghai.
As one of the companies growing massively year over year, Tesla is building factories after factories, to ramp up production of its models.
Giga Texas is the winner here. The factory once finished, is going to mass-produce Model 3, Model Y, Cybertruck, and Semi which is set to begin in 2021.
Tesla Giga Berlin is already coming together at an impossible-seeming speed, as predicted two days ago by CEO Elon Musk.
Checkout the photos below, as shared by a Tesla fan on twitter https://twitter.com/Gf4Tesla
Here is a video of Giga Texas as shared by YouTuber Terafactory Texas: