I'm experiencing an unusual stuttering problem.
I'm experiencing an unusual stuttering problem.
Could this really be the device I’m using? It’s the only one that has remained consistent across all builds. I notice some stuttering, but my timing chart shows a smooth line. Since it’s an LG CX TV, I can’t connect it to a display port for testing. It seems the problem isn’t just from using this model. I’ll check latency next. I didn’t realize this would help, but I’m curious. The issue disappears completely when I switch the monitor to ray tracing off—though it’s frustrating because that was the main reason for getting a 4090. It also resolves at 1440p 50Hz or 4K 120Hz, which made me think about the cable. I’ve tried PS5 and Series X cables without success. I don’t have a display port on my TV to test, but I just bought another monitor online that should arrive soon. It would be interesting to see if that’s the cause. To clarify, Fortnite runs smoothly at 2560x1440 60Hz DX12, but anything higher causes stuttering. With ray tracing off, it becomes even worse. I’m not sure if this shows up in any monitoring tool. Here’s the game at 2560x1440 60Hz DX12—everything runs perfectly. If I switch to 2560x1440 60Hz DX12, it stutters badly. I’m still trying to figure out what’s behind this.**
Playing Cyberpunk in 4k/120Hz suggests the problem isn't with your monitor or cable. Your attempts with different motherboard and CPU combinations indicate the issue might lie elsewhere. It could be related to RAM or storage performance, particularly under high refresh rates. If you were to replace the existing RAM modules or SSD, it might resolve the issue. Consider testing with fresh components before making any changes.
It seemed like I expected the monitor to handle everything smoothly. Some games run without any lag, while others cause constant stuttering. I tried different RAM and SSD setups but didn’t improve things. I’m considering upgrading to a 13900k with DDR5 someday.
They're just another attempt. Each one comes from a different retailer. The monitor will be available tomorrow, which should help confirm it's not possible. Such an irritating issue!
After further testing, the games that completely stutter disappear when I switch to 1440p. At 4k the stuttering returns. This might be related to bandwidth issues.
Bandwidth might be the issue, though it could relate to any component... memory controller, PCIe, storage, etc. Are you certain your card uses PCIe 4.0? My 4090 was stuck at 1.1 for a while—until a motherboard BIOS update on AM5 fixed it. You said you think DX11 is worse than DX12, but what about OpenGL and Vulkan? If you own Doom, it might work on both.
I figured it out after chatting with another forum member. They mentioned experiencing the same stutter in the same games I do. It turns out it's related to Unreal Engine. Makes perfect sense since the games I previously said didn’t stutter actually use a different engine. This explains why Linus in his LG CX video didn’t mention it at 4K 120Hz—he doesn’t play Unreal titles. Whenever he tests monitors, he plays Doom, CountCraft, Halo, Shadow of the Tomb Raider, and Civilization. That’s why he never runs into stutter issues. The video I watched convinced me to try it; no Unreal games there. https://www.youtube.com/watch?v=x9n8Hz_RLqw What a waste. There’s nothing I can do. The biggest fix would be to disable it by daylight, since I spend 2k hours playing daily. It explains why Resident Evil series, Shadow of the Tomb Raider, Doom, Siege, Dying Light 2, Halo Infinite, and Cyberpunk all run flawlessly, while Fortnite causes crazy stutters. https://www.eurogamer.net/digitalfoundry...=Typically, this stutter is caused,bothersome on Unreal Engine titles . So if I want to buy a game for PC, I should check if it uses Unreal Engine and opt for PS5 instead. All other games I can get on PC...
Wow, thanks! Based on my experience with Unreal Engine projects, it’s clear that Epic prioritizes developer convenience by simplifying tasks and reducing the need for basic coding. This saves time but often comes at the expense of performance. Since I recently upgraded to UE5, I’ve noticed UE4 games still run on older hardware, and even newer titles struggle with high resolutions. The positive side is that widespread adoption means optimizations can spread quickly if developers keep updating. On the flip side, many consoles still run at 30 FPS, so studios likely won’t focus heavily on 120 FPS improvements anytime soon.