Serious Sam VR mGPU NVIDIA GTX Pascal Follow Up

Serious Sam VR was the first commercial enthusiast gaming title to include multi-GPU support with AMD's RX 480 GPU. Now the folks at Croteam have added mGPU support for NVIDIA cards as well. We take a look at how well NVIDIA's VRSLI technology fares in this VR shooter title.


SSVR GTX 1080 mGPU Results

For the VR gameplay data on this page, we are using NVIDIA GTX NVIDIA 1080 Founders Edition cards.

GTX 1080

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Keep in mind that our red line shows us when the Vive HMD starts using Reprojection to duplicate frames if the GPU cannot keep up with the workload needed at that given moment. The red line in this graph also shows one of the shortcomings of having ten thousand data points on a single graph. While the Reprojection looks significant, it is not during gameplay. Reprojection accounts for only 3.62% of our actual frames and is not noticeable during SSVR gameplay. Dropped frames are fully insignificant as well. SSVR with Ultra-Ultra-Ultra and the GTX 1080 is fully and acceptably playable.

Our SSVR result is an average GPU Render Time of 8.757ms with a single GTX 1080.

GTX 1080 X2 mGPU

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We do very much see mGPU / VR SLI working in SSVR. You will notice that we have no Reprojection frames to speak of, however it truly did not make a noticeable difference in gameplay.

Our average GPU Render Time (lower is better) drops to 7.028ms from 8.757ms with mGPU GTX 1080.