Not a strict 1:1 comparison, but I guess as a reference point? (Prices from US Amazon)

- Asus Rog Dominus Extreme - 1,677.48

- Intel Xeon W-3175X - 3.1 -> 3.8 boost (28 Core) - 3,078.49

- Decent Case - 200$ (maybe even bump to 400)

- 4 x 8 GB DDR4 3000 MHz Corsair C15 - 160$

- 970 EVO m.2 NVMe Drive - 69.99

- Radeon Pro 580X - Around 200$

- Noctua NH-D15 - 90$

- 1000W Titanium Seasonic - 256.92

Total: 5,732.88

Yeah there's some differences like having more cache, or more RAM support... but $5,999 from Apple is for the 8-core base model...

Edit: I clearly new to writing lists.