This list is a little better power supply and motherboard.and excludes the keyboard and mouse nd would involve building it yourself and mailing in rebates and some postage.
It's a tier-1 system with excellent CPU and graphics card.
Handles 1440P gaming very well and can handle 4K gaming.
Power supply is a Channel Well Technologies GPS series a little below RM Corsair series.
They are a good high volume producer.
Motherboard audio is unknown and might have raised the board a bit.
If you must have wifi, if subtracts from gaming and motherboard wifi is inferior to a good Gigabyte with antenna.
There is no question that it is an excellent pc, and if already purchased is ot worth changing.
For $18, probably would have upgraded to 850 Watts - EVGA 850W GQ 80 Plus Gold Power Supply, by FSP is a tad better at not much money and a touch higher in motherboard with GIGABYTE Z390 GAMING SLI and if wifi is needed add it later.
Neither affects gaming performance.
You have a very nice PC that performs well.