Question Dilemma between iTX and classic ATX build

[hd_scania]

2100GBP for 20TB drives × 64GB DDR5 × iTX (170² mm²) board/chassis? (https://terminalhk.com/pcSystem/customize/63735c8d57b4526004d8cd6d)
or
2500GBP for 32TB drives × 128GB DDR5 × ATX (344² mm²) board/chassis? (https://terminalhk.com/pcSystem/customize/6374710234ce966b04770388)

My table is 565mm deep and 800mm wide, is an ATX build still too big to that table?

How worth it is to go for 1.6x higher drives and 2x higher RAM’s, but 2x less space efficient and 1.191x higher total pricing?

 

[SkyNetRising]

What is purpose of the system?
Why does it need 8TB of SSD storage?

Also - none of those setups will work without a discrete graphics card.

 

[hd_scania]

I have too much UNIX-like FOSS OS’es wishlisted for that system, but only a few of them are daily drivers, to be on the first NVMe SSD, only this is an must, the final three instead are just for fun
And you mean ... At least an APU or at best an DGPU for those my settings? Surely i’m await for Zen4 (the same gen with that 7900X) APU’s like sth (estimated only) called R9-7950GX (16C32T) or R9-7900GX (12C24T) or R7-7800GX or R7-7700G ... or just Zen3+ desktop APU’s (estimated only as well) like R9-6950GX (16C32T) or R9-6900GX (12C24T) or R7-6800GX or R7-6700G ... so on thanks?
(Are you also aware that 7900X still has a barebones RDNA2 integrated graphics w/o being an APU with 2 CU’s and 128 SP’s?)

What is purpose of the system?
Why does it need 8TB of SSD storage?
Also - none of those setups will work without an APU or an DGPU.

 

[SkyNetRising]

Are you also aware that 7900X still has a barebones RDNA2 integrated graphics w/o being an APU with 2 CU’s and 128 SP’s?

Huh. Non-G model has integrated graphics now.
Interesting (also a bit confusing).