Game runs smoothly for 20 minutes, then massive FPS drop

I can play on ultra settings for20mins to an hour. Then I will take a town portal, or click a vendor and get a massive FPS drop followed by screen stuttering between 20 and 40 fps.

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What is your PC hardware? I never have any dips in the game whatsoever, constant 240 FPS that hardly ever dips no matter the situation on Ultra settings.

@OP i get the same thing running on 3080 and 13700k , 32gb ram. Usually around 140-165 fps @1440p res but get constant drops to 40-60 fps and it’s very noticeable because the game will stutter for a second while it’s dropping.

Would it work if you don’t use ultra textures? For me on my RTX 3090 the ultra textures on 1080p use up 17.8GB VRAM, as I write right now with diablo 4 in the background it’s using that much, however I’m pretty sure that’s because the ultra textures are meant for 4k and not 2k or 1k resolutions.

There is a memory leak that blizz wont acknowledge. Many other people having same issue. If you check task manager when this happens you will see your vram is maxed out.

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For me it’s a non issue, it never goes above 18GB VRAM usage and i have no issues leaving the game open for 12-16 hours on ultra settings, ultra textures are meant for 4k resolution as far as I know, so I think you shouldn’t be using them unless you have a 4k capable PC.

Can you stop trolling the forums? We get it, you don’t have issues. Other people do.

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It’s not trolling, it’d help if people posted their hardware specs and what exactly causes the slowdown to narrow the issue down though. If there was a leak then would it not keep increasing past that 18GB VRAM mark and causing issues even for people with higher-end hardware

Its trolling. Replying "im not having the issue so its not an issue " to the 100th post from 100s of people having this issue is trolling. Stop replying to threads you have nothing valuable to add to.

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my value add is if you’re using ultra textures you likely need more VRAM than you have, it’s not a leak because if it was it’d keep increasing over time, but it stops and never goes above a certain value. Ultra/high-res textures are for 4k setups.

Literally bumped it to low everything still crashing. There is a memory leak for certain people. It is clearly not a hardware issue when hundreds of people have different rigs. Can you stop being dense?

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So are you saying a 4080 or 4090 is not enough for Ultra textures in a game like this? Two of the most powerful cards on the market? Because I have one of those and still get this issue. Plenty of people with 4090s reporting this issue.
Ultra textures, or textures in general are busted, and Blizz need to acknolodge it.

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This is such a wierd statement … it uses 18GB of VRAM on 1080P and you are still saying “there is no problem” O.o Try uping your resolution and see if you still have no problems, since those 18GB will not be the limit anymore.

Just for a reality check, official system requirements:

Ultra 4k

  • OS: 64-bit Windows® 10 version 1909 or newer
  • Processor: Intel® Core i7-8700K or AMD Ryzen™ 7 2700X
  • Memory: 32 GB RAM
  • Graphics: NVIDIA GeForce® RTX 3080; NVIDIA GeForce® RTX 40 Series for fully supported DLSS3 or AMD Radeon™ RX 6800 XT
  • DirectX®: Version 12

So, a 10 GB VRAM card is suppossed to do 4K easy on stable 60 FPS … not 18 GB for 1080P nonsense.

I can play on ultra 1440P for an hour max, until it runs out up VRAM and begins to lag, then stutter and finally crash the game and driver, with my RX 6900 XT - a card made for 4K …

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I don’t play in resolutions above 1080p because I value 240Hz/FPS more than higher resolutions, ergo my monitor only supports 1080p so I can’t test higher resolutions.

Stop feeding the troll

Same issue here guys.

Have a RX 6600 XT, I5 core-3.6 ghz, 32gb of ram. 144hz monitor , 1440 p resolution.

First 10-20 minutes of playing the game is smooth. afterwards its almost unplayable. Drops from 120fps to 30fps. Even when playing with all low settings its still 30-40fps.

Is it my setup or is there an issue with 8gb AMD video cards?

Yeah, I’ve started to notice the FPS drop too. I am not sure what’s going on, but this is not a hardware issue.

My rig is:

  • NVIDIA GeForce RTX 3080.
  • AMD Ryzen 9 3900XT 12-Core Processor.
  • 32 GB RAM.
  • Driver version 535.98 (latest).

I am gaming on “High” preset for Video, and sitting on roughly about 180fps, then after about half an hour to an hour, the FPS doesn’t exactly dip down, but it has these weird drops where it goes to 20fps and shoots back up to 180… so so weird…

And as for the actual RAM usage for D4, don’t get me started. There’s a 100% memory leak that has not been addressed/acknowledged.

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It’s the ultra textures, I get the same on a 10GB 3080, but it’s fine with high textures. It feels like the game just keeps using more and more VRAM until it causes stuttering and you have to restart.

I thought yesterday’s update had fixed it but today it was worse than ever. The stuttering started right away and it felt like the game was going to crash my whole PC several times. Back down to high textures and the game runs flawlessly.
A 4080 shouldn’t need to drop texture quality from ultra. The silence from Blizzard on this obvious problem is insulting.

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This is the same for me. What I’ve noticed is that it causes problems with the entire PC. If I alt-tab out, the PC is unusable for a minute, then it fixes itself. Then I go back to playing fine for another 10 mins and the same issue happens. I’ve tried lowering almost every setting and the issue still occurs.