Dell Optiplex 9010 - i7 and 16GB memory... Need "less expensive" video card for gaming. Any suggestions?

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Wow, the GIGABYTE GeForce GTX 1050 Ti really woke up that computer!!! His buddy was teasing him that "you can't play games on a desktop computer". Probably his father said that... ha ha. Explained to my son that this is an i7 with 16GB of memory used in our engineering department. Just needed to wake up a little bit. This was not a cheap computer when we ordered it. Wasn't for gaming... But, now it is.

Oh, and I downloaded the drivers from Nvidia versus the drivers from Gigabyte. Do you guys agree with that?

Thanks!!!