So I just order my Video card for my build and I saw a YouTube video of a 2gb and when I get on amazon they were just a few more dollar and I payed $119.99 for
You can check and see if it's a good deal. Just type in XFX 260x 1gb into google then go the shopping results and see the cheapest price to see if you got a good deal. I would be happy to help you but not search things up for you if your just being lazy. pcpartpicker.com also has a good price history of products.
Also you said you got a 2gb but you put after that "XFX Radeon R7 260X 1075MHZ 1GB 6.4GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E" So which one did you buy 1gb or 2gb? Search up the one you bought into Google to find similar prices.