This is a great all in one computer. It is a great value for the money. The AMD Ryzen 7 processor is a powerful CPU and the Radeon RX580 graphics card works great. I can process 10 minutes of 4K video in under 8 minutes on this machine. If you do some research online you already know this all in one is upgradeable, the back comes off very easily. The system has 2 storage drives, one for storing documents and a 256GB solid state hard drive which is used to boot the system which means when you turn on the system the boot time is just a couple of seconds. The 4K display is incredible and the bezel on the sides and top are very thin. The only reasons for not giving this system 5 stars were because the keyboard and mouse are very cheap feeling and the system contains quite a bit of plastics. Also, the camera is at the bottom of the display, I assume to keep the upper bezel thin but that causes a strange camera angle when using Skype.
First, I am not in anyway a tech geek. I wont be sophisticated enough to answer your gaming questions. But at age 57, I have owned many desktops and laptops. I currently work with a Apple 27" iMac® Intel Core i5 (3.4GHz) - 8GB Memory - 1TB Fusion Drive I bought at Best Buy earlier this year. Love it. But really love this Dell desktop too and they are of the same capacity and screen size. Has been flawless... After continued use I'm noticing occasional freeze ups as if there are programs bogging down the machine. I think this is a Windows 10 issue but rather disappointing. I've even gotten the opaque whitish screen a time or two.