Low GPU Usage Iris + DH, AMD RX 7900XT
Hello! I have been trying out Iris with Distant Horizons, I am very impressed so far, but ever since I tried to download the latest version of Iris (From the Iris Website) GPU Usage seems to hang around 60% when shaders are enabled.
This is interesting to me because I have a different version of Iris with DH Support that shows way better GPU Utilization, this Iris version is: "iris-mc1.20.4-1.7-alpha.1-ba8b16d4.jar", it seems to work way better compared to the latest one in the Iris Website and the latest test build. in the #unstable-releases channel.
Is this Alpha Version newer and I'm just confused or is there something wrong with the version from the Iris Website?
I have included a video comparing the 2 versions.
Iris "iris-1.7.0-snapshot+mc1.20.4-5983468.jar" shows exactly the same GPU usage behavior as "1.7.0-snapshot+mc1.20.4-7fcec4d".
I have tried installing other optimization mods to try and improve performance, while these mods do improve performance a bit, they don't improve it enough.
I have also tried messing with the shaderpack settings, but that doesn't help either.
Sorry in advance if I just got different versions confused and this is actually expected behavior.
Here's a list of my PC specs:
CPU: Ryzen 7 5800X
GPU: AMD Radeon RX 7900XT
RAM: 16GB DDR4@3600Mhz CL18
OS: Windows 11
162 Replies
Is it just lost FPS and Stuttering or Lost FPS only? If the game is working fine then there's nothing to worry about
When everything is loaded, there's little stutter, but there's a massive FPS loss by using the Snapshot instead of the Alpha
You can see in the screenshot I go from 214FPS to 105FPS
Can you list the mods youre currently using with their versions? I have a RX 7900 XT and a Ryzen 5 7600, yet my frames are around 50-60 when using the iris+DH mod from https://youtu.be/pIRSjKz9RLg
TroubleChute
YouTube
Minecraft Never Looked This Good + Guide | Distant Horizons + Shaders
Distant Horizons has come a long way. This video shows you how to install it, as well as shaders to get the best out of the experience. From start to end, you should be able to get ingame and get going as soon as possible using this guide! Minecraft has never looked this good. You should now be able to see into the far distance in your world.
D...
GPU util is also around 40-50% which is a lot less than what you reported
At first I was using the ones that come with the Iris Installer, installing more mods increased FPS but not by much.
I'll give you a list of all the mods shortly
And Iris, of course
As of now I'll stick to the Iris Alpha Build since that one is giving me crazy good performance
Huh, that's a bit weird since your CPU should have better single core performance than mine
All the more reason as to why I'm confused
I also killed all the entities in my world in a desperate attempt to decrease CPU usage 😅
The thing is
even with just iris + Bliss shader, my fps falls to around 60-70
I haven't tried this Iris Snapshot without DH
I'll give that a try
I think you should give the version that runs well for me a try.
Here is the performance I'm currently getting:
Im going to try with another iris version and check
Looking there you seem to have a very similar problem, your CPU is being loaded too much and your GPU is probly not doing much because of that.
Check in your Distant Horizons Settings that you're not generating world
The version that actually works well for me is:
1.7-alpha.1-ba8b16d4
I am also using the 24.2.1 AMD Adrenalin Driver.Might be, but the performance I'm getting with just iris and the shader is still around 60-70
is gpu usage still below 90%?
I'm also on that version, although there is a newer one.