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Multi-monitor setup 280hz 27″ monitors x 6 off of ONE HE GPU 3090 ti OR 4090 bottle-neck? [closed]

Hoping to get some REAL help on this one…

I have been building this system for over 1 yr. ( I know, I know…fear slows me down ).
The system is-
MB- ASUS ROG MAXIMUS Z690 EXTREME
CPU- i9-12900KS CPU (de-lidded, direct die cooling block)
RAM- G.Skill Trident G5 6400
GPU- 2 x RTX TITAN GPU’s Shunt modded ( for 2100 ghz )

ALL of this is water-cooled 2 custom loops on a “chiller” 1 loop for CPU & RAM
one loop for GPU’s.

ALL is overclocked ( licking my chops for 6 GHz on Raptor Lake on 8 Pcores so installed ball valves on the CPU run segment for change out).

I have 6 x 280hz ASUS TUF monitors ( thus, 2 x GPUs ). This has taken me so long that “tech” has actually CHANGED in the mean time.

So NOW I’m in the position to change out the 2 x TITANs for 2 x 3090 ti’s

I had envisioned 6 monitors running 6 x 8K DP cables TO 2 x GPU’s in NVlink

…but now I am wondering, can I get away with ONE HE GPU…and 2 x Matrox Triple Display Port “splitters” OR…will the splitters SLOW / bottle-neck ALL that I have done…and should I just stick WITH “DIRECT” 8K DP CABLES FROM 2 x GPUs TO the 6 x 280hz monitors ? ( Just shooting for 1080p ).

NVLink / SLI is ENDING with the NVIDIA 3 series so…Being able to “split” off of ONE HE GPU is becoming increasingly pertinent.

So…in the end, the question IS…Will “splitters” block/ bottle-neck my speed TO the 6 x 280hz monitors OR…should I continue on with the 2 x GPU idea and go DIRECT from GPU to monitors? “Visual latency” from bandwidth signal is of PARAMOUNT importance on this build!

Thanks in advance, DERBYBLOOD