SprayingMango

arestavo

SprayingMango
There is so much misinformation and misunderstanding around SLI setups / NVLINK it makes me laugh. I've been running SLI setups for as long as it's been a thing and the 2080Ti's in SLI (NVLINK) is amazing. 

Yes it is true that in DX12 microsoft / nvidia have not yet enabled mGPU. This only impacts a few games or use cases where you may want to use the extra horsepower, such as BFV w/ Ray Tracing. Maybe that will be enabled in the future. 

, NVLINK functions exactly the same (if not better) than traditional SLI. Both cards see fantastic scaling in games that support SLI, and in the case of BFV you can use nvidia inspector to change the compatibility bits to enable it until nvidia and dice release an official profile. 

Most of the games I play use SLI and on my Asus PG27UQ at 4k + HDR in DX11 mode the games look and play AMAZING. 

In games that do not support SLI like AC: Odyssey my single 2080Ti XC Ultra just rips it and it plays great! 

I love your first two paragraphs, outlining that there is misinformation out there and then immediately putting misinformation out there in the very next paragraph.

DX12 multigpu is NOT enabled by Microsoft OR Nvidia (other than by having Windows 10 and a compatible Nvidia driver installed). It is 100% on game developers to enable it. Some have, but many just don't put any work into it at all and release their game without DX12 mgpu support (explicit mode, implicit mode, whatever).

Nothing I said was incorrect. Enabling mGPU for DX12 still needs work from MS, Nvidia, AND developers. Yes, I should have also specified that developers need support in their engines but there is still work to be done from others. Ray Tracing is not currently supported in ANY mGPU setup, thus Nvidia needs to work on that. MS still has certain aspects of DX12 mGPU support locked down and they could do a better job of making it easier to implement FOR developers. 
 
https://developer.nvidia....programming-directx-12

ZelmoQuad
Skipping the RTX2080 Ti and staying with my 1080Ti SLI after seeing these results and comments.

Vlada011
GTX1080Ti SLI is significantly stronger than RTX2080Ti.
But I would rather use single RTX2080Ti. I would not even think about that, RTX2080Ti definitely.
 
As gamer I'm fan of single premium graphic card 250W class and rather choose them even when SLI is 30-40% stronger.
I would even choose rather single GTX1080Ti than dual GTX1080.
Even with enough stronger PSU build for SLI configuration I stay loyal to single GPU and because of that I try hard to powerful as much I can and not accept any advice about overkill in GPU segment and approach where only first 6 months are important. Every product I look how he could work next 3 years not first 6 months.
 
Looking new drivers overclocked RTX2080Ti models are around 35-40% stronger than GTX1080Ti.
GTX1080Ti SLI could beat RTX2080Ti for 20-25%, that's significant difference, maybe even 30%. But not difference worth of tweaking and looking how SLI behave in games.
Maybe if someone run benchmarks only, for gaming RTX2080Ti without second of thinking no matter on model, no matter on anything.
RTX2080Ti Heatkiller waterblock, OC on Founders Edition clocks and gaming could start.
 

bettc
SLI is tricky, I was finding most new games didnt come out with SLI support. it was an after thought if at all.  Sometimes it was months before it came out, sometimes, straight away.  I'm back to 1 card now.