It seems likely that Doom Eternal would also run acceptably on that machine, but that CPU generation and GPU are definitely on their way out.
(1050 TI: 6400 PassMark, 750 TI is 3800).
He's also well below the minimum CPU requirement.
A Xeon 1225 has a PassMark CPU score of 3,502. The minimum requirement for Doom Eternal is a 3.3Ghz i5, which, depending on which of the gazillions of i5 variants you mean, is a minimum of 5400.
If they really mean any 3.3Ghz i5, I say the Xeon E3-1225 is clearly superior to the i5-660 (dual core @ 3.3Ghz).
I really wish people would give real minimum specs again. Pick a specific processor you've run it on that it won't run on any worse and specify what cpu features you need, if any, so you know a higher end processor from previous generations won't work.