Adobe Dimesion crashes on GPU Rendering with VRAM overflowing

[defaultdb3aoqhu2n0b]

I am using Dimension 3.4.7 as of now and i tried rendering different scenes with CPU and GPU. 
As assumed, the GPU Rendering is about 2-3 times faster BUT as soon as the model gets to "big" that the rendering fills up the VRAM of the graphics card completey the Dimension will just crash or stay with a gray screen without doing anything.

I tried the following Cards: 

RTX 2070 Super (8GB VRAM)

RTX 3060TI (8GB VRAM)
RTX 3080TI (12GB VRAM)

CPU Rendering works always
I can render "bigger" Models with the 12GB VRAM than with the 8GB VRAM, but if the viewport gets to big it still crashes. 

I can see that the dedicated graphic ram is getting filled up when the rendering starts and as soons as it comes to the limit it crashes. 

System Info: 
CPU: Ryzen 3700X
RAM: 96GB DDRAM 3200MHZ

[Ussnorway]

yes they know