Here's my system. iBUYPOWER Desktop PC T.T SERIES NE729i. It's unchanged since 2014. I got a brand new monitor and I'm wanting to game on it. It's the Acer XG270HU. It was about $360. I only had $1100 to spend so that's $740 left. Can it be upgraded so I can game on it with the $740 I have left...