I confirmed even though this card’s GPU is ~1950 MHz, mine was consistently running at less than 900 MHz - and this artificial throttling is what was causing the FPS spikes. Your suggestion to use MSI Afterburner to confirm I was seeing the same behavior was brilliant.
Solved! I was researching on the NVIDIA forums and apparently the NVIDIA HD Audio Drivers cause conflicts with some older games that can, apparently, artificially throttle the GPU. But there’s nothing inherently wrong with my RTX 3090 card as it smashed through at least a dozen other games I own at 200 FPS on ultra settings with no issues (including several Blizzard games). To prove this out, I can actively swap back my RTX 2080 Ti card and the FPS immediately improves and is as smooth as butter.
My RTX 2080 Ti had no issues playing the game at a rock solid 165fps+ on max settings. Even IN TOWN, I’m seeing frame rate dips with all my settings turned way, way down. There’s definitely a bug somewhere… on NVIDIA’s side or Blizzard’s (or both). I know not many people have this card (yet), but I wanted to report something in case anyone else experiences it. Thinking maybe NVIDIA drivers or something with the game client that doesn’t like the card? I confirmed I have the latest NVIDIA drivers (and even did a fresh uninstall/reinstall), latest Windows updates, etc.Īll my other games like Doom Eternal and WoW run at a solid 200fps, but Diablo 3 (and only Diablo 3) took a huge hit when I upgraded to the RTX 3090 for some reason. I also disabled Gsync and tried with Vertical Sync (native in game) on and off - no difference in jittery, occasionally lower framerate than on my last gen RTX 2080 Ti card.Īll else being equal, I’m seeing huuuge frame rate spikes down to 90 fps intermittendly. Tried turning off SSAO, turning on low effects, turning off Anti-Aliasing, setting everything else to low and it doesn’t make any difference.
I9900K overcloked to 5 GHz (all cores), 64GB RAM, RTX 3090 (Founder’s Edition), 1TB NVME SSD. For some reason Diablo 3 runs much worse on my RTX 3090 than my RTX 2080 Ti.
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