Performance issues

Hello there. I’m experiencing performance issues when running scene for VR in HDRP.
It runs smoothly on my old PC. However, when I copy the entire Unity project to newly built PC, the performance is significantly lower.

PC1 (old one)
specs: i7 - 4790K, 32 GB Ram, RTX 2080, SSD (Baracuda)
approx 120 FPS

PC2 (new one)
specs: i5-10600 , 16 GB Ram, RTX 2070S, SSD (NvMe)
approx 50 FPS

As you can see on screenshots, the difference in the performance is massive, even though both PCs should have fairly similar performance (according to benchmarks).
-Any idea what might be causing it?
-Does it have something to do with Unity project settings (even thought they are same on both PCs)?
-How can I fix it?
Thanks


Hi,

Indeed, specs are pretty similar and I’d expect closer framerates.
A few pointers to help diagnose:

  • try to gather perf data from the same exact viewpoint (the batches are different in both screenshots
  • is this also happening with latest Unity version ? 2019.4 LTS
  • can you use the Unity Profiler to analyse what is different ?
  • Is the difference as strong when using a Standalone build ?
  • Do you have the same NVIDIA drivers and the same Windows version on both ?
  • Is this only happening in Unity ? Can you try a different software like a benchmarking tool to compare your 2 machien ?

If you can’t make progress, I’d recommend to log a ticket with a repro project