10.09.2020, 18:31
Today i connected additional Radeon 7970 GPU 3GB and test dual GPU setup with Radeon RX 580 8GB. 7970 is older and by LuxMark tests about 15% slower in OpenCL, but it is still decent card for additional compute.
I test Deinterlace+SMDegrain+NNEDI upscale to 1440x1080. Seems it is impossible to force both GPUs compute the same filter, so i experiment with different variations and switch manually devices in different filters.
In system monitoring both GPUs where 100% loaded during render, but for some strange reason i can't see any real difference in render time compare to single Radeon RX 580 setup.
I test Deinterlace+SMDegrain+NNEDI upscale to 1440x1080. Seems it is impossible to force both GPUs compute the same filter, so i experiment with different variations and switch manually devices in different filters.
In system monitoring both GPUs where 100% loaded during render, but for some strange reason i can't see any real difference in render time compare to single Radeon RX 580 setup.