Unexplainable lag in minecraft w rx580 GPU

[Dolan]

Hello folks! Im recently having some issues with minecraft.. So the problem is when i launch the game it immidietly starts to lag around 20-40fps.. People get like thousand frames with almost the same hardware yet i really dont know whats wrong with my PC. Allocating rams updating java, installing optifine/sodium and stuff didnt really change much. What do i do?

Specs:
XFX RX580 GTS XXX
Ryzen 5 3400g
Dual channel 16gb 3200mhz
B450m-a pro max 2

Yeah the cpu lacks a little but i think it really shouldnt be that bad.. CPU usage stays around %70 80s drops to 60 time to time wheras gpu stays around 300-500mhz at 32 chunks but the lag is just unbearable. (Im not suspecting of throttling either cpu temps peak around 70 degrees) Is this driver related??

 

[Redwoodz]

Hello folks! Im recently having some issues with minecraft.. So the problem is when i launch the game it immidietly starts to lag around 20-40fps.. People get like thousand frames with almost the same hardware yet i really dont know whats wrong with my PC. Allocating rams updating java, installing optifine/sodium and stuff didnt really change much. What do i do?

Specs:
XFX RX580 GTS XXX
Ryzen 5 3400g
Dual channel 16gb 3200mhz
B450m-a pro max 2

Yeah the cpu lacks a little but i think it really shouldnt be that bad.. CPU usage stays around %70 80s drops to 60 time to time wheras gpu stays around 300-500mhz at 32 chunks but the lag is just unbearable. (Im not suspecting of throttling either cpu temps peak around 70 degrees) Is this driver related??

Maybe. I'd suggest installing a monitoring program like HWinfo. It will tell you what's going on. CPU@70% and GPU@35% suggest something else is the cause. Make sure it's the only program running. Check HDD utilization, network utilization, power and temps. Check RAM for faults.

 

[DaemonForce]

Is it vanilla Minecraft? I have the same issues running this antique and still haven't been able to figure it out.
On a Phenom II X4 with 4GB and a HD6570 it ran fine on then JRE6.x but I can't find those binaries anymore and they'll just auto-update anyway.
Something serious happened when moving to the RX 580 because I can run most modern games just fine on this VR coffin but anything from DX7 era, Java SE5, anything that directly obsoletes some old AMD features, it just runs terrible. Probably doesn't help Minecraft's case that it's not optimized for the current generation of CPUs either. If I can't figure it out, good luck.

 

[Tawess123]

Hi Dolan,

I'm stuck with the same issue as you. I have an rx 580 8gb too but it lag in minecraft..
I was on a gtx 560ti and i was working at 500+ fps...
So i you have found out how to repair it, tell me.

 

[QuietBob]

Minecraft Java Edition is heavily CPU dependent and relies on a fast single thread. Even the most powerful processors will struggle to run it smoothly with 32 chunks. In addition, the game will always stutter when creating new chunks, especially immediately after loading into a world. The graphics card's performance is irrelevant when running the game without custom shaders.

But lowering the render and simulation distance to something more managable should eliminate most of these problems. Here's the current vanilla JE 1.20.4 running on tweleve year old hardware @ 1080p, using an FX-8300 CPU and an HD7970 GPU:

 

[Dolan]

Hi Dolan,

I'm stuck with the same issue as you. I have an rx 580 8gb too but it lag in minecraft..
I was on a gtx 560ti and i was working at 500+ fps...
So i you have found out how to repair it, tell me.

Yeah i allocated 12gigs of ram and now it runs a LOT smoother than before. And minecraft doesnt hesistate to eat it all up lol.