Thanks for the explanation. Are the figures in your graphs using sli or 1 card out of curiosity?

 

I saw an old thread that you posted Rob about sli performance, but i think that was before P3D had a proper sli profile. I have 2 MSI 970 gtx overclocked running with 16gb ram and a i7 [email protected]. I have an Asus strix 970gtx in another pc upstairs, just wondered if you thought I could get any performance benefits from tri sli for 4k? I have a Maximus Hero VII motherboard which supports tri sli.

 

cheers!

I have two EVGA SSC GTX970's in SLI running on a 50" Vizio 4K tv and it's awesome. I have it set at 30Hz and she runs as smooth a silk. I maintain 30fps with out a problem in P3D using Orbx, ASN and REX4 and flying high end aircraft such as the PMDG, A2A etc...

I got the following model tv after a number of avsim users recommend it. It's awesome and cheap!

VIZIO D50u-D1 50-Inch 4K Ultra HD 120Hz LED Smart TV (2016 model)

Thanks petkez, but I already own a 55" 4k HDR 3D Sony BRAVIA android TV, and I already run P3D in sli, I just wondered if I would get any performance gain by chucking my other 970gtx into my rig for Three way SLI.

 

 

I have an Asus strix 970gtx in another pc upstairs, just wondered if you thought I could get any performance benefits from tri sli for 4k?

 

I haven't tried 3-way SLI ... I think it would only be beneficial with 4K, high AA levels (or SGSS AA) when flying in dense cloud cover or during spray type of FX (like in FSFXPackages - Immersion products).

 

For full PCIe x16 support in 3 slots or 4 slots you'll need to use X99-E WS something like this one from Asus

 

Testing is with two Titan X in SLI performance mode - here is some data I've gathered over time with various options that you might find interesting.

 

 

Cheers, Rob

Worth noting that from the 10 series GPUs onwards (so 1070 & 1080 for now) more than 2-way SLI isn't even possible (except for a few "white listed" benchmarking applications), so even Nvidia thinks that 3-way SLI offers diminishing returns