r/optiplexes

I've got offered for a really good price a Dell Optiplex 7060 MT, with an i5-8500 six core CPU (65W TDP), 16 GB of DDR4 RAM and a 1 TB HDD (I have already a SATA SSD that i can pair that with), the thing is, the power supply is a Dell 260W one... I've been interested on buying a GTX 1060 Dell OEM to get a decent low end gaming experience on it, but is it any possible to do so? I saw that it is a 120W graphics card... But i saw recently a video where someone succesfully got one working on a 290W Dell PC (with a 4th gen CPU that needs more power).

I appreciate any feedback