Why is my UE running at very low FPS

So I’m new to UE and I’m looking to use the free Hype Chamber that was released by Epic Games for people to use. I’ve checked the recommended spec requirements and my computer meet those criteria. When I boot up UE though and load the project, it takes forever to load and as soon as the project is loaded, I’m moving at about 2-3 frames per second. When I tried clicking the play button to just simply explore, UE crashed.

I’m currently running an AMD Ryzen 5 3600 with a 980 with DirectX 12 currently installed and supported. Do I need better hardware to be able to actually run and use UE or is there some other setting that might be causing this kind of behavior?

The 980 might be the problem, also how much RAM/VRAM do you have?

Which project? There is a difference between running just the editor and running a huge project:

I have a total of 16 GB of DDR4

Thanks for the link to the post, I was trying to find a post like this but couldn’t find it initially.

As for which project, I was trying to open up “Broadcast Sample” by Epic Games. It’s a free sample released in conjunction with Psyonix for their game Rocket League for those that want to upgrade their Rocket League broadcasts. I was trying to explore what I could do with it for my school.

Right, but how much on the GPU?

4GB+, only the 970 had the infamous ¬3.5GB. For all we know it could be the HDD choking.

Open Task Manager → Performance, see what’s up.

1 Like

So turns out there was a graphics driver update that I had to do and I updated my graphics drivers. Once that was done, I booted up the project again and after some low FPS loading, things smoothed out and I can fly around very smoothly now, but now I’m getting very severe screen noice on the project. According to task manager, I’m currently at ~85%-95% CPU usage at ~3.7-3.8 GHz. My GPU is sitting between ~99%-100% usage right now with 9.4 GB of RAM being used between the project and a single chrome tab opened up.

As far as VRam is concerned, I currently have a total of 4 GB of dedicated VRam.

So after some further digging, I’ve finally found the solution and apparently had a bunch of old drivers. Thanks though for your help and advice as it pointed me in the right direction and things seem to be running smoothly now. I still have the error message saying Video memory has been exhausted by x MB over budget, but it doesn’t seem to be too much over budget. It’s not going over 101 from what I can tell; is this something I need to overly worried about or no? Also in the bottom right hand corner where it says preparing shaders, should I wait for that to be finished loading before doing anything or am I okay?

Things will work during compilation, just more slowly.

1 Like

Sounds good, again thanks for the help. I’m gonna be on this page a lot for the next while as I really want to learn how to use UE5 for this purpose as it’s going to be so hype!

2 Likes

One last quick question actually that crossed my mind, when I upgrade my system down the road, what is the most important thing to upgrade/focus on? Obviously I know I need to upgrade my GPU, but what is the biggest game changer when working with UE? Is it CPU, GPU, or RAM? Or is it something else that is a bigger impact on the performance that I’m not thinking of?

CPU, GPU, or RAM?

CPU > RAM > GPU

But it’s more about balance of those 3, so you do not create a major bottleneck. A mighty 3090ti would need to wait for a 4 core CPU to trickle data, and the CPUzGPU slowly pull data out of the mere available 8GB RAM as the slow HDD pulls it out of a pagefile of a mechanical drive.

Or is it something else that is a bigger impact on the performance that I’m not thinking of?

NVMe SSD, Direct Storage is becoming reality. If your system or UE is still on an HDD, it’s not going to be fun.

Okay, so if I were to upgrade my 980 to like a RX 6600, that shouldn’t cause too much of a bottle neck with my Ryzen 5 3600, 16 GB of 3600 MHz DDR4 RAM, and 1 TB of SSD storage. (Granted I know 1 TB won’t nearly be enough if I intend to use UE intensively, but for now should be fine for a simple project; I would hope.)

I’m fully planning on upgrading my CPU and the rest of my PC later down the road, but more of just trying to figure out what is my main priority to upgrade now versus what can wait just a bit longer to upgrade down the line.

1 Like