İntel Arc B580 Titan OC Low FPS/Crazy stutters/Unstable Performance/Mixed Up GPU Usage

[livix]

I recently upgraded my GPU from an AMD Radeon RX 6600 to a Sparkle Intel Arc B580 Titan. While I see significant performance gains in some titles, I am experiencing severe instability and inconsistent GPU utilization in others.

Performance Observations:
Assassins Creed Valhalla (Only-Success): This game runs perfectly. On my old RX 6600, I used to get 70-80 FPS with optimized settings. With the B580, I have maxed out every setting and comfortably achieve 90+ FPS.

Crimson Desert (Unplayable): The game suffers from extreme stuttering. While the FPS occasionally reaches high peaks, it frequently drops to unplayable levels.

Marvel’s Spider-Man (Unstable): Initially, the game performed well, maintaining 70-80 FPS on maximum settings with Ray Tracing enabled. However, the performance eventually degraded, resulting in heavy stuttering and unplayable frame rates.

GPU Utilization & Driver Overhead:
The most concerning issue is the inconsistent GPU utilization. On my previous RX 6600, GPU usage was consistently at 99% during gaming. On the Intel Arc B580, the usage is highly unstable; it frequently drops to 60% or lower and fluctuates wildly. It feels as though there is significant driver overhead or a bottleneck preventing the card from maintaining a steady load.

System Specifications
CPU: AMD Ryzen 5 5600
GPU: Sparkle Intel Arc B580 Titan OC
Motherboard: MSI B450M-A Pro Max (PCI-E 3.0(I think its not the problem))
RAM: 2x8GB=16GB RAM DDR4 3200MHz
Storage: 1TB Kingston NV2 NVMe SSD
Power Supply (PSU): DeepCool PK550D 550W
Monitor: LG UltraGear 24" (1920x1080p, 144Hz, 99% sRGB)
Settings: Resizable BAR is Enabled.
Bios: Bios is up to date.

Troubleshooting Steps Taken

Driver Cleanup: I used DDU (Display Driver Uninstaller) to completely remove the previous AMD drivers before installing the new card.
Intel Driver Installation: During the Intel software setup, I specifically selected the "Clean Install" option to ensure no remnants of old configurations remained.

Request for Assistance:
I am looking for advice on how to stabilize this performance. Since Re-Size BAR is already active, what specific optimizations or driver configurations are required to ensure consistent GPU utilization and eliminate the stuttering in these titles? Any guidance would be greatly appreciated.

 

[Colif]

Crimson Desert (Unplayable): The game suffers from extreme stuttering. While the FPS occasionally reaches high peaks, it frequently drops to unplayable levels.

That is totally on the devs of the game, they didn't ask for Intel to help with driver support. Unsure what has happened since launch in that regard.

looking at your reddit post, did you do this:

The b580 needs pcie-4.0x8.

Your MoBo only supports 3.0.

You've been running in pci-e 3.0x8 instead of 4.0x8 which causes these exact issues.

Download gpu-z and check pci-e bus speed vs what the bus speed should be (both sides of bus interface should be 4.0x8).

Both Crimson Desert and Spider-Man are known to have issues on the ARC B580. That motherboard only supports PCIe 3.0, and the GPU only has an x8 bus width, so you're getting half the theoretical bandwidth between GPU and CPU/mobo.

Spider-Man, Miles Morales, and Spider-Man 2 are all VRAM hogs and very sensitive to PCIe bandwidth. I had to figure this out the hard way on my 5800x3D/B450 setup. When I upgraded to a 9800x3D and X870E (I know, total overkill), the issues went away. That being said, if I force the X870E to run a PCIe 3.0, the stuttering and low performance returns in those Spider-Man games.

And don't even try Ray Tracing on any of those. It will EAT vram fast, and once it's saturated, your experience will be completely terrible.

Sorry your experience hasn't been great. I went through the same thing.

reddit link

 

[livix]

That is totally on the devs of the game, they didn't ask for Intel to help with driver support. Unsure what has happened since launch in that regard.

looking at your reddit post, did you do this:

it uses about 10 GB of VRAM regardless of whether Ray Tracing is on or off. However, while it performs perfectly when Ray Tracing is disabled, the performance completely collapses as soon as I turn it on. Honestly, I still don't know the reason; I'm continuing my research. So far, I’ve encountered serious issues with only two games:

• Crimson Desert: This game is truly in an unplayable state.
• Marvel’s Spider-Man: It shows massive performance without Ray Tracing, but the moment I enable it, things get really bad—I experience freezes, lagging, and heavy stuttering.

 

[Colif]

it uses about 10 GB of VRAM regardless of whether Ray Tracing is on or off. However, while it performs perfectly when Ray Tracing is disabled, the performance completely collapses as soon as I turn it on. Honestly, I still don't know the reason; I'm continuing my research.

Is that for Spiderman 2? if it uses 10gb without ray tracing, it would run out of vram if you enable it as ray tracing uses vram,. GPU has 12gb but its probably going over when you enable Ray tracing and it has to use ram, which is not ideal. That would explain the slow down and stuttering, as ram is farther away for the card than VRAM so it introduces latency. The 8gb of ddr 4 it shares with windows is going to be slower than 12gb of GDDR6 on the GPU.

That explains why anyone trying to play that game with that GPU gets that experience. Its not just you:
Reddit link

I can't find anything regarding Spiderman 1.

 

[Zed Clampet]

it uses about 10 GB of VRAM regardless of whether Ray Tracing is on or off. However, while it performs perfectly when Ray Tracing is disabled, the performance completely collapses as soon as I turn it on. Honestly, I still don't know the reason; I'm continuing my research. So far, I’ve encountered serious issues with only two games:

• Crimson Desert: This game is truly in an unplayable state.
• Marvel’s Spider-Man: It shows massive performance without Ray Tracing, but the moment I enable it, things get really bad—I experience freezes, lagging, and heavy stuttering.

So a kind of interesting thing is that the Intel GPU's have their own version of CUDA fallback policy where the GPU can borrow system RAM when needed, AND, Intel GPUs are much better at using system RAM, so the performance hit isn't as bad as it is with Nvidia, so if it's VRAM that is the main cause (and I have no idea how well that GPU runs ray tracing in the best of circumstances) then more RAM might be a stopgap solution, if only RAM prices weren't ridiculous right now...

Basically, as I see it, @Colif has given you the answer. Just do what everyone else does and turn it off. Honestly I've seen people repeatedly fail to be able to tell any difference between the graphics with it on or off, and when they could tell, they couldn't decide which was better. Stuff like that is disappointing to hear when you get a new GPU, but ray tracing is just not worth the amount of computing and VRAM that it needs.

Your CPU is good. You technically have enough RAM. None of that other stuff is likely to tank performance unless you are underpowered, and then you would have serious other problems, so it looks like the problem is with the game or with the drivers, and Colif has found a lot of evidence that it's the game. That also sucks, but there isn't anything you can do about it. You just have to wait for the developers to devote time to that.

 

[Zed Clampet]

One more thing. The game actually only needs 6 GB of VRAM. Games will use extra if it's available.

 

[livix]

So a kind of interesting thing is that the Intel GPU's have their own version of CUDA fallback policy where the GPU can borrow system RAM when needed, AND, Intel GPUs are much better at using system RAM, so the performance hit isn't as bad as it is with Nvidia, so if it's VRAM that is the main cause (and I have no idea how well that GPU runs ray tracing in the best of circumstances) then more RAM might be a stopgap solution, if only RAM prices weren't ridiculous right now...

Basically, as I see it, @Colif has given you the answer. Just do what everyone else does and turn it off. Honestly I've seen people repeatedly fail to be able to tell any difference between the graphics with it on or off, and when they could tell, they couldn't decide which was better. Stuff like that is disappointing to hear when you get a new GPU, but ray tracing is just not worth the amount of computing and VRAM that it needs.

Your CPU is good. You technically have enough RAM. None of that other stuff is likely to tank performance unless you are underpowered, and then you would have serious other problems, so it looks like the problem is with the game or with the drivers, and Colif has found a lot of evidence that it's the game. That also sucks, but there isn't anything you can do about it. You just have to wait for the developers to devote time to that.

Im not sure about it. My problem is something diffrent. Even without high vram usage there is still bottleneck.

my last reddit edit.

"EDİT 8: After the couple of days I’ve confirmed that my B580 graphics card is being bottlenecked in NPC-heavy areas(maybe not that certain, ı just tried witcher 3 and crimson desert to find out "Does high NPC count cause a bottleneck?" ı think yes ). In all my tests, PBO was enabled, and I even manually overclocked the CPU to 4.8 GHz, but I still couldn't overcome the bottleneck. I tried re-install windows, re-install intel driver, ı tried diffrent versiion of intel drivers, tried OC, tried diffrent windows settings, I tried even 4k for crimson desert to avoid cpu bottlneck but how does it still have bottlenck, when entering npc heavy areas my pc just couldnt do it.

I’ve run out of options; I can’t think of any possible solutıons. I really enjoyed Crimson Desert, but I have no choice but to uninstall it now. Farewall crimson desrert, we will meet again someday."

after that post, ı tried crimson desert with 1.06.0 versiıon and still same bottlenck. I tried in witcher 3 and the outer worlds 2. when entering the NPC heavy area my pc couldnt do his job.

 

[Colif]

Does high NPC count cause a bottleneck?

Yes, but its not the GPU, its the CPU which has more to do with managing large crowds, Even with the best GPU, its going to be bottlenecked by crowds until CPU have way more cores to allocate to running npc. Its a matter of processing power. Overclocking may not overcome that as its a numbers game

CPU: AMD Ryzen 5 5600

Intel plan on 50 core CPU next gen whereas AMD will max out at 32 cores/64 threads. That is slightly more than your 6 cores/12 Threads. CPU doing the best it can, even a 12 core CPU now would still be a bottleneck in large crowded areas. Any Gaming CPU would be.

There aren't any consumer grade CPU designed to play games that have enough cores to not be a bottle neck... then the games need to be written to use more than 8 cores/16 threads. That might start to happen with PS6. But even then it will only be 10 cores.

Better ways to deal with crowds need to be created before you won't get some slow down dealing with them.

'Crowd Density' setting is a huge hit on CPU usage. Video proof included.

*I posted this in the general Technical forums as well. I can delete that if necessary. I didn't notice the PC sub forum until after. I want to email someone at CDPR a copy of this link to show the component usage in regard to the 'Crowd Density' setting, but I'm not sure what email address I...

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