Getting Better Performance

Last year I purchased an Alienware Aurora Ryzen Edition PC thinking this would be powerful enough to build a game in UE5. However I am constantly facing low FPS in the editor when building my game, even though I don’t have much going on in the editor. I attempted to run the city sample project and it just locks up the editor due to low FPS. I am wondering if I am missing something, my pc is too low specced, or if there could be something wrong. Here is a list of what I have:

  • AMD Ryzen™ 7 5800 (8-Core, 36MB Total Cache, Max Boost Clock of 4.6GHz)
  • 32GB, 2x16GB, DDR4, 3200MHz, X MP
  • 512GB M.2 PCIe NVMe SSD
  • AMD RX 6800 XT16GB GDDR6
  • High-Performance CPU Liquid Cooling and 1000W Power Supply

I am curious if adding more RAM would help? Is my 8 core not enough to create a basic 3D game? Is the RX 6800 just not capable of handling what I am doing?

I feel like everything I have should be sufficient enough, I am using all nanite based objects from bridge and just using basic walls from the editor. Any suggestions would be helpful.

The machine is more than enough.

It’s one of two things

  1. It’s set up wrong. I heard that Alienware has a bit of a ‘flexible’ reputation . IE sometimes, the whole way the machine is configured is wrong. Fans pointing the wrong way, bad BIOS settings etc. It might be a good idea to benchmark it and check you’re getting what is expected without overheating
  1. The Epic city demo is famous for bringing peoples’ machines to their knees, so it’s not a good reference point. Stuff you’re building yourself is a better bet. It could be, you need to understand more about optimization. For instance, Nanite isn’t ( yet ) the panacea it’s rumored to be. Also, generous foliage placement can also wipe out any machine.

Give the temple demo here a go

I have a pretty standard machine, and only a GTX1660, and I get 20 fps with everything maxed out. But, about 90 on the more efficient settings. Very playable.

  • AMD Ryzen™ 7 5800 (8-Core, 36MB Total Cache, Max Boost Clock of 4.6GHz)
  • 32GB, 2x16GB, DDR4, 3200MHz, X MP
  • 512GB M.2 PCIe NVMe SSD
  • AMD RX 6800 XT16GB GDDR6
  • High-Performance CPU Liquid Cooling and 1000W Power Supply

Looks good to me, make sure your CPU is boosted on the frequency, DF pointed out more cores are pretty pointless for UE5 during real-time performance(It should be good for compiling shaders during development)

UE5 has more optimized pipelines for AMD card like yours and you have plenty of RAM.
But real quick…what resolution is your monitor? I am not sure what resolution your GPU is recommended for, but you want to make sure you are using a monitor running the recommended resolution.

Remember Lumen on high is the “60fps” option for GPU’s running at 60% of their recommended resolution and upscaling(Go see UE lumen documentation). Shadows are also heavy, what scalability are you using?

If you already think you have all those corners covered and you can’t get 60fps with reasonable scalability/mostly green in shader optimization view/ Profiled GPU scene and cut corners, then vote this forum. NEW UE5.4+ feedback: Start working on and investing in PERFORMANCE innovations for actual GAMES.