Hello everyone, I have a desktop with an Nvidia GTX 770 and an AMD 7870. I got the 7870 for free and was hoping to increase my PPD. It should do 50 or 60k ppd. The 770 does around 100k and I use that for my primary display. I do not have a second display.
I can't figure out what the problem is, but although I installed the drivers for both GPUs, the AMD card does not do more than 5k ppd. The power consumption at the wall only increases by 10 watts if it's running on the 7870, which makes me believe there is a driver issue and it prevents it from really using any graphics power.
I was wondering if there are any known issues with AMD cards or known incompatibilities with running another brand GPU at the same time. I have messed around with the GPU, CUDA, and OpenCL indices with no luck. It's obvious when I have it wrong because the slots fail to start.
Any troubleshooting advice would be great.
Thank you in advance!
PS, I would attach some text from log files, etc, but I'm not sure what is actually relevant or useful to anyone helping. So I apologize for that, but please let me know what additional information you require.