Performance Drop at end of Stage
Performance and GPU usage drop significantly around the last sector of every stage. Ryzen 5700x3d Radeon 7800xt
Forum Discussion
yes still following this, Do you also have examples of how far your FPS drops down? On your system and mine I believe it should still be able to stay reasonable(forgetting VR mode performance for now), say 50-60FPS dependant on graphics settings.
Out of curiosity which motherboard and PCI-E slot revision are you running at?
I'm on a 5800X3D with Radeon RX 6800 but with a B450 Motherboard that restricts my PCIx16v4.0 slot to v3.0.
Seeing as the issue is still appearing and for people running more powerful GPU's than me my next brute force attempt to workaround it is probably going to be -build a system based on the recently released Ryzen 7 9800X3D CPU, this may also allow me to see if PCI-E slot bandwidth has an effect(doubtful).
5800X3D + 6800XT running at full 16x 4.0. 64 GB 3600 cl16 ram
Game goes from 115 FPS and 6% GPU idle to 75 FPS and 35% GPU idle. I think I saw someone mentioning that 9800X3D handles about 100 fps when the performance drop kicks in.
Some event graphs. "Good" frame:
"Bad" frame:
You can see massive idle times in the gpu events. There are no barriers there, pure gpu idle waiting for tasks. What's concerning that there's still some idle time even in the "unaffected" frame.
Call comparison (the car has only moved about 10 meters here):
