What is a good way to benchmark test a GPU in Linux?
Edit: I was able to run some benchmark tests, so I don't need help with this anymore, but after running the tests, I'm pretty sure my computer is having hardware issues. I don't really have any other options, though, so I just have to deal with it.
The computer I was using stopped working and I had to switch to a different computer but despite having a significantly better GPU, games are performing only slightly better. I want to benchmark test the GPU to see if it's a potential hardware problem or if something else is causing a bottleneck.
It's not uncommon. The main use is running the powerful GPU only in games and such, while using the other one the rest of the time, to reduce power consumption, heat and noise.