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SpecsTacular

Single-GPU vs Multi-GPU Rendering (GTX 1080Ti vs Titan Xp) -- DaVinci Resolve

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Posted · Original PosterOP

DaVinci Resolve Studio support Multi-GPU rendering but how much is the difference from single to dual. Is it better to use GTX 1080Ti or Titan Xp for GPU Acceleration? I would plan to use nVidia Quadro P6000 for 10-bit color for my primary displays and using either single or dual GTX 1080 Ti/s or Titan Xp/s

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If you have the money why not buy one 1080 Ti first then see if you're satisfied with the results and then do or don't get a second 1080 Ti, but in my opinion the Titan Xp isn't worth the extra money over the 1080 Ti.


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Also, don't know that this helps but I do a lot of video editing as well (premier pro), anyways my brother has an SLI setup with dual GTX 980 Ti's and its only about a 20% increase in rendering performance, over a single 980 Ti like in my system (My CPU is more powerful though too). I know that's on the maxwell architecture and SLI bridge performance was a big improvement on the 10 series Pascal GPU's. But like I said maybe try one 1080 Ti then see if you'd be willing to fork over the money for a second GPU.


Blueberry Pi : R7 1700 OC@3.9GHz ‖ Asus X470 ROG Crosshair VII Hero Wi-Fi ATX ‖ Corsair Vengeance LED (Blue) 2x16GB 3000MHz ‖ EVGA GTX 1080Ti SC Black Edition 11GB ‖ EVGA P2 850W ‖ Cryorig R1 Universal (Blue) ‖ Fractal Design Meshify C TG ATX Mid Tower

 

Server + Streaming PC : i7-8700k OC@5.0GHz (Delid) ‖ Asus Z370-G Gaming Wi-Fi mATX ‖ G.Skill Ripjaws V 2x8GB 2800MHz (Grey) ‖ EVGA GTX 1080 SC2 Gaming iCX 8GB ‖ EVGA P2 750W ‖ Corsair H100i Pro ‖ 4x IronWolf 8TB 7200RPM (Raid 10) ‖ Phanteks Enthoo Pro M TG ATX Mid Tower

 

Big White : i7-6700k OC@4.8GHz ‖ Asus Z270I ROG Gaming Wi-Fi AC ITX  ‖ Corsair Vengeance LPX 2x8GB 3000MHz (White) ‖ Asus GTX 1060 Dual Series 6GB ‖ Corsair RM650i ‖ Thermaltake Frio Silent 12 (White) ‖ Thermaltake Core V1 Snow Edition Mini ITX Cube

 

Mini IPC : Pentium G4600T ‖ MSI B250I Gaming Pro Wi-Fi AC ITX ‖ Corsair Vengeance 1x8GB 2400MHz (Black) ‖ Intel Integrated Graphics ‖ Built-In 150W Inwin PSU ‖ Cryorig C7 ‖ Inwin BQ696 Mini ITX Case W/ PSU Black

 

Laptop: Dell XPS13 (2017) ‖ i7-7550U ‖ 16GB DDR3 1866Mhz RAM ‖ Intel Integrated Graphics ‖ 512GB m.2 SSD ‖ QHD+ (3200 x 1800) InfinityEdge touch display 

 

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mvp_pas_candle.png

Barefeats has some very basic Resolve benchmarks. Oddly enough their older Noise Reduction benchmarks seem to show much better multi-GPU scaling:

d980_cand.png

d980_lite.png

 

I can't help but wonder if the situation is getting similar to games, where a single GTX 1080 Ti is powerful enough that having two of them doesn't make as large a difference anymore.

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