Question EVGA - RTX 3090 NVlink bridge - 3-slot?

[Infikiran]

Sorry if this has been asked before but I recently purchased an EVGA RTX 3090 for a decent price and it's a beast of a GPU compared to the 2080ti I was using. I primarily use the card for 3D rendering in Daz Studio. As most of you know I'm sure, the IRAY engine will use as many CUDA cores as you throw at it, so at some point I would like to add a 2nd GPU in my system. While I can easily do that, as I had two 2080tis before, I would also like an NVLINK bridge so that I can link the video memory together for much larger rendering scenes, giving me a total of 48GB VRAM between two cards. Only problem is I only find 4-slot spacing NVLINK bridges. The way the slots are spaced on my motherboard I would need a 3-slot spacing bridge. I've not been able to find one anywhere. Does this even exists? I don't want to fool with risers if I don't have to as I don't have the case room for it.

 

[faalin]

Only one i could find at a decent price EBAY

 

[Order 66]

just get a 4090. it's about a ~70% uplift compared to the 3090. Maybe get 2 of them

 

[Infikiran]

Only one i could find at a decent price EBAY

Ah, I only saw 4-slot ones. Do they have to specifically be for a 3090 or is there another gen I could look for?

 

[Infikiran]

just get a 4090. it's about a ~70% uplift compared to the 3090. Maybe get 2 of them

Yeah, but I'd still be capped at the 24GB VRAM. With 2 3090s NVLINKed I would have the edge over a 4090 plus double the VRAM. I understand it's not needed for games but rendering large scenes in IRAY I used up VRAM quick.

 

[faalin]

Ah, I only saw 4-slot ones. Do they have to specifically be for a 3090 or is there another gen I could look for?

it only needs to be a NVLink. The older SLI cable will not work. If you hunt around hard enough there are other NVLinks, saw one made by PNY but they wanted $500 for it.

 

[Order 66]

Yeah, but I'd still be capped at the 24GB VRAM. With 2 3090s NVLINKed I would have the edge over a 4090 plus double the VRAM. I understand it's not needed for games but rendering large scenes in IRAY I used up VRAM quick.

If you are serious about this just get two RTX A6000s

NVIDIA RTX A6000 Powered by Ampere Architecture | NVIDIA

Unlock The Next Generation Of Revolutionary Designs And Immersive Entertainment Experiences

www.nvidia.com

 

[Infikiran]

If you are serious about this just get two RTX A6000s

NVIDIA RTX A6000 Powered by Ampere Architecture | NVIDIA

Unlock The Next Generation Of Revolutionary Designs And Immersive Entertainment Experiences

www.nvidia.com

I'm serious about it but also don't have that kind of money. 3090s on the used market are fairly reasonable. 4090s an RTX a6000s are way out of my price range.