Astonishing mod runs DLSS 5 on a second GPU to boost neural-rendered FPS up to 127% — game renders on one card, neural post-processing runs on the other, much like dedicated PhysX GPUs
A modder has created a ReShade add-on that runs Nvidia's DLSS 5 Neural Rendering on a second GPU, rendering the game on the first GPU to share the performance load.
Nvidia's DLSS 5 Neural Rendering technology has become a sensation in the PC gaming community following its recent leak and official release. In an impressive demonstration, a developer showcased DLSS 5 running on a second GPU to offload processing from the primary gaming card, resulting in a boost of up to 127% in neural-rendered FPS.
Marcelo Guibout highlighted the demonstration, featuring The Blood of Dawnwalker and Cyberpunk 2077, noting that the videos are technical showcases rather than benchmarks. The setup requires a second display and doubles the display latency. The demonstration utilized a Ryzen 7 7800X3D, 32GB DDR5 configuration with two RTX 5060 Ti 16GB GPUs and a display attached to each card, using the ReShade add-on known as the MGPU Bridge.
This add-on reads each finished frame and sends it to the second GPU for neural rendering, displaying the results on the card's own monitor. The render GPU remains idle, running cooler. The performance test on a 1080p cinematic video from The Blood of Dawnwalker showed DLSS 5 off yielding 67-70 FPS, DLSS 5 on the render card at 106-107 FPS, and DLSS 5 on the second card delivering 157 FPS.
The second GPU absorbed a larger share of each frame, keeping about 86% of the computational power. While not similar to Nvidia's SLI technology, Guibout clarified that this is not Nvidia's intended use for DLSS 5 and does not offer native integration.
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