I’m running an Intel i5-14400F and an ARC A750. I noticed that when I’m doing a group ride, 45-80% crowded, I’m getting FPS rates of 17-21. Even at 25% crowded, I’m still only getting 25 FPS. At 18% crowded, I I’ll get 42 fps. Changing the resolution did not make a noticeable difference.
However, when I disabled Video Screenshots, my FPS jumped to 50-80, even at 70% crowded.
I currently have version 1.101.0.
Here is some data from TrainerDX
My guess is that it’s because the i5-14400F does not have Intel Quick Sync hardware video encoding (because it has no integrated graphics capabilities), so video encoding is happening on the same core as the game engine, and for some reason the video encoding is not being offloaded to the Intel ARC A750. Updating the driver for the A750 might fix this.
I updated the driver last night, so I don’t think that will resolve the issue. I don’t really use video screenshots, but if I plan to in the future, it would be nice if I could get this feature to work.
Those results are not very good even after you disabled video screenshots so I’m not sure I would call this a video screenshots problem, though it always makes things worse.
I don’t know if this is related to the A750 but there was a previous report that @Rowdy responded to that might be relevant.
I have zero experience with the Arc GPUs and would always recommend Nvidia first for Zwift, even if it’s years old.
The other thing to consider is whether CPU throttling is going on, for example if the heat sink is not installed properly. You should be checking if the system is healthy and achieving expected benchmarks for the i5-14400F so you can rule out an external cause.
Just to clarify the driver question, since I have heard that Intel had problems in many games that were resolved with a driver update, can you confirm that you are running 32.0.101.8250 from 12 Nov?
I do have driver 32.0.101.8250
I’ve been monitoring the CPU temp with Core Temp, and it maxes out at 60 deg, so I don’t think the CPU is throttling and overheating.
It seems that Spotify has a minor impact. Maybe 5-10 FPS.
I opened Task Manager during a quick ride. It says that my CPU usage is 9% but my GPU memory usage is 78%. Does that seem right?
That is a super nice CPU that should have enough horsepower to run Zwift and almost anything else you want. The way Zwift works is it mostly uses a single CPU core, so overall utilization of a multi-core CPU will appear low even if the game has exhausted one core and game performance has gone into the toilet. But my guess is that this problem is more like that report I linked above. That is only a guess since I have no way to do a side-by-side comparison of how the game works on an A750 vs one of the more common Nvidia cards. Even a mid-range Nvidia card from a few years ago would do better than what you are seeing. Hopefully Rowdy will see this topic and let us know if they are aware of any open issues that sound like what you are seeing.
BUMP! Any news on this?
