I don't understand what are you asking. First read some post about xenon VS I core.
First things first if you plan to play games and have some graphic design software or something like this you need standard PC not server.
Server comes with Xenon, if you read somewhere that someone sell Intel Pentium I3, I5 or I7 core as server that is not server it's PC.
here is you can find all Intel desktop processors
link
So for best gaming experience you need:
Desktop PC with I7 core (more core /threads better) or extreme version for extreme performance.
CPU: I7 5th 6th or 7th generation
RAM: at least 16GB best 64GB some of I7 can handle 128GB
GPU: Graphic Card GeForce GTX 970, 970, 980ti, 1070, 1080. New generation is GTX 10xx and its better then GTX 9XX series. For extreme performance go with 2x or 4x GTX 9xx or 10XX SLI.
Disk: SDD for OS system (for some of software / games additional SDD) and HDD 1TB for storage
If you have any other questions feel free to ask.