davidstone83
No matter what I did I could not get the snow to go away on the benchmark. I have uninstalled and deleted the rockstar documents and will reinstall. 

olrdtg
I've tried both profiles from Sajin and JustusLM; Sajins profile doesn't scale at all, the 2nd GPU isn't utilized and it gives the game horrible stuttering. JustusLMs profile scales, both GPUs are utilized, but only in the main menu.. If I try to launch the benchmark or load into my saved game, it crashes after loading.
It will load, the loading screens stutter a bit, then the screen goes black after its loaded and I can hear noises for a minute before it crashes. I tried using the exact settings Sajin posted screenshots of. I am using Vulkan. I've even tried turning off my overclocks on my CPU, GPU and RAM to see if maybe that was causing an issue but nothing works.
 
I've even gone back and tested a few games that I know SLI works in, including GTA V and ran into zero issues; so the problem appears to be with RDR2
 
Side note: Anyone who has an HDR monitor/tv; I recommend disabling it. Turning on SLI creates a horrible flickering effect all over the menus. Also RDR2 seems to crash more for me with HDR enabled as it is, and it causes this weird 40 second blank screen delay when it launches as it switches display modes
 
Specs:
Intel Core i9-9900X @ stock clocks (Normally 4.80Ghz)
Asus ROG Strix X299-E Gaming (Latest BIOS)
80 GB RAM @ 2666mhz (Disabled XMP/OC from 3000mhz)
Titan RTX (x2 NVLink/SLI) @ stock clocks (Normally +120mhz/+900mhz)
 

olrdtg

notserious80

olrdtg
I've tried both profiles from Sajin and JustusLM; Sajins profile doesn't scale at all, the 2nd GPU isn't utilized and it gives the game horrible stuttering. JustusLMs profile scales, both GPUs are utilized, but only in the main menu.. If I try to launch the benchmark or load into my saved game, it crashes after loading.
It will load, the loading screens stutter a bit, then the screen goes black after its loaded and I can hear noises for a minute before it crashes. I tried using the exact settings Sajin posted screenshots of. I am using Vulkan. I've even tried turning off my overclocks on my CPU, GPU and RAM to see if maybe that was causing an issue but nothing works.
 
I've even gone back and tested a few games that I know SLI works in, including GTA V and ran into zero issues; so the problem appears to be with RDR2
 
Side note: Anyone who has an HDR monitor/tv; I recommend disabling it. Turning on SLI creates a horrible flickering effect all over the menus. Also RDR2 seems to crash more for me with HDR enabled as it is, and it causes this weird 40 second blank screen delay when it launches as it switches display modes
 
Specs:
Intel Core i9-9900X @ stock clocks (Normally 4.80Ghz)
Asus ROG Strix X299-E Gaming (Latest BIOS)
80 GB RAM @ 2666mhz (Disabled XMP/OC from 3000mhz)
Titan RTX (x2 NVLink/SLI) @ stock clocks (Normally +120mhz/+900mhz)
 

What kinda fps are you getting with dx12 without messing with profile? If any card should be able to handle rdr2 4k ultra with around 60 fps i would think it would be a RTX Titan ^^

On DX12 at 4K ultra I get around 40-43 fps; using Vulkan I get an average of 45 fps in dense areas, but it usually sits in the 50s. But regardless of the API, when the framerate goes above 45 fps or so, it starts dropping frames left and right and gives everything a nice stuttery appearance. The Titan is pretty similar to the 2080 Ti in terms of game performance. So far the only game I've seen it outpace the 2080 Ti on is Outer Worlds. On that game I get up to a 15 ~ 20 fps advantage for some reason. Vulkan seems to perform a bit better for me w/ less crashing
 
But yeah, I can't get either profile to work. I can't get ANY profile to work except the original. :(

JustusLM

squall-leonhart
You cannot force SLI on Vulkan or DX12 api's, the Driver has no capability to make this work and RDR2 has no DX11 renderer.

You cannot be correct about this. It is working, there is a significant performance increase using Vulkan with Sli enabled.

And this is Sli, this is no other type of mGPU rendering. So, well, it must work, otherwise it wouldn't be working.

The whole point of DX12 was to remove as much driver abstraction as possible and give developers as much control of the GPU(s) as possible.
 
This has it's advantages and disadvantages. Namely, if a developer doesn't care to code their DX12 game to use more than one GPU there won't be anything NVidia or AMD can do about it short of lending their own devs to do it.
 
If my understanding is correct we are not likely to ever get "DX12 SLI Profiles". If a DX12 game is going to support multiple GPU's the games engine will have to be specifically coded for it, instead of relying on driver tricks like previous DX generations. ROTR won't use more than 1 GPU because that is all it is currently coded for. Hopefully that changes as they polish up the DX12 support. Only time will tell I suppose.
 
I expect this to be the "norm" for a while as the game developers are still getting accustomed to using DX12. It's still early days on the common game engines but the support will get there. Ashes of the Singularity will currently only use 2 GPU's but I've read work is being done to scale that to 4+ GPU's even. It'll likely be slow to get there.. but I suspect once it does multi GPU will be WAY better than ever.

Sajin

squall-leonhart
Hey Sajin, can you test SLI with the RDR profile entirely deleted?

Yeah, sli works without the profile. 
 
When Setting ID_0x20247e01 = 0x00000002 is added to the profile sli will not work.

ccreon
Someone on reddit figured out how to change the SLI profile of the newest driver to make it work: r/RDR2/comments/dssli4/rdr2_sli_settings/
 
However, I still get the same flickering effects. Also, disabling TAA now completely crashes the game for me. But at least it doesn't require to run an older driver.

squall-leonhart
gsync doesn't work coz of a bug
 
quit with the conspiracy bs, it makes you look desperate to cause trouble,
There won't be a profile that makes it work because Compatibility Setting ID's in the profile do NOTHING for vulkan and dx12.