Dual 2080s for 16BG VRAM?

[GalacticViper]

I have an AIO liquid cooled 2080 by GIGABYTE in my system right now (13700k, z690 board, 32GB DDR5)

Lately I've been noticing that I am VRAM bottlenecked on a few of the games I like as I only have 8GB. I'm fine turning down settings, but it would be nice if I had more.

Conveniently, I have a 2nd air cooled 2080 by EVGA hanging around and I was wondering if it would be possible to add that card to my system in to double my VRAM. Both cards have the SLI connector thing on the side.

I know a lot of games don't support dual GPUs for rendering frames, but would I be able to somehow just use the EVGA card for extra VRAM?

I have no idea how SLI works or anything, so this might not even be possible, but I thought I would ask.

 

[Zando_]

Nope. SLI just bridges the cores, doesn't pool VRAM . Even the newer cards with the NVLink connector just use it for normal SLI. You need Quadros or similar to pool VRAM. 

[Slottr]

Not how it works unfortunately - you still have 8GB VRAM either way 

 

You’ll want to look at a new card if performance is lacking.

[Xiee]

Just go get a 4090. Though it only has 24GB RAM, that's enough power right there.

[191x7]

Does not work like that, the 2 GPU-s would still use 8GB.

 

The option is to upgrade to a Radeon 6800 series card with 16GB.

[Somerandomtechyboi]

Sell the two 2080 and buy youself a used 3090, 24gb of vram for around 700$ atleast on ebay though youll usually find cheaper deals on your local used market aka fb marketplace/gumtree/whatever classifieds site

 

A cheaper option would be a used 6800(xt)/6900xt

[Applefreak]

1 hour ago, GalacticViper said:

I have an AIO liquid cooled 2080 by GIGABYTE in my system right now (13700k, z690 board, 32GB DDR5)

Lately I've been noticing that I am VRAM bottlenecked on a few of the games I like as I only have 8GB. I'm fine turning down settings, but it would be nice if I had more.

Conveniently, I have a 2nd air cooled 2080 by EVGA hanging around and I was wondering if it would be possible to add that card to my system in to double my VRAM. Both cards have the SLI connector thing on the side.

I know a lot of games don't support dual GPUs for rendering frames, but would I be able to somehow just use the EVGA card for extra VRAM?

I have no idea how SLI works or anything, so this might not even be possible, but I thought I would ask.

 

How can you tell? If you use some stats program, that only tells you allocated memory, which is fine. The game code may be written that way to then have near instand access to more  memory instead of tasking the system to add more by clearing old stuff out and dumping it to storage. Do you notice performance issues at all? Only because allocates that much VRAM,  doesn't mean it will be using it unless you know the code yourself.