Minecraft, of all things, runs horribly.

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Justiceinacan

Justiceinacan

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Jul 19, 2016
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Need some help here. For whatever reason Minecraft totally doesn't agree with my system anymore. No settings changed, no mods installed (just vanilla, not even texture packs) My graphical settings are on pretty high but I am not convinced my video card is the problem (RX 470)

-CPU : AMD FX-8350 (4.7 GHz)
-RAM : 8 GB DDR3-1333

I'm convinced it's my RAM. Many say it's "**** slow" and I think it's choking in other games (Overwatch for instance) but at least that's playable ; instead I get minecraft rubbernecking on singleplayer offline. The GPU is never above 80 C and the CPU never above 55 C. Thermal throttling disabled. Is my RAM the issue?
 
Solution
K
Firstly, an FX 8350 at 4.7 GHz is like an FX 9590 which draws 220W.

1. CPU check- If using a 970 Board see here.
Lower the overclock and voltage slightly to 4.4-4.5 GHz Can be an overheating VRM on your board especially if yours is a 970 board or your board does not have VRM heatsinks. Or you can attach a small fan to cool your VRM.

1.CPU check- If using a 990 board see here.
If yours is a 990X or 990FX board with heatsinks on VRMs, then check your GPU. Go to part 2.

2.- GPU check.
Your GPU might not have enough power supplied to it. If it is factory overclocked, lower stock clocks by 25 MHz (2%) and increase the Power Limit to 20%. FPS drops and artifacting is usually caused by overzealous overclocks. I generally dont support GPU...
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kittle

kittle

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Dec 8, 2005
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has minecraft EVER run nicely?
if so, check back to what changed in your system since then -- including windows updates. It could also be a java update.

if its always run slow, then it could be minecraft is not using your graphics card, but rather trying to do software based rendering on your CPU.
your AMD control panel should have an option to set which graphics card to use. Make sure its set to use your dedicated card.
 
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Justiceinacan

Justiceinacan

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Jul 19, 2016
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Yeah the integrated ATI graphics only support up to 1152 x some ridiculously low number - in short I'd know.

Also, I experimented running it off the integrated chip and it only got 10 FPS, not rubberbanding.

Minecraft used to run well with a frame stutter when entering a heavily settled part of the world which I believed to be RAM or something having a minor hiccup. There have been a few windows updates since I have played last. What should I do to investigate if that was the problem?
 
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kittle

kittle

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its been a while since I played a current version of minecraft - but im assuming yours still requires java. Make sure your have is updated and MAKE SURE you have the 64bit version of java installed. Also check the minecraft launcher to make sure its using the right java version (you will need to poke around in the launcher on your own and see how to do that)
 
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K

kgt1182

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Jun 8, 2016
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Firstly, an FX 8350 at 4.7 GHz is like an FX 9590 which draws 220W.

1. CPU check- If using a 970 Board see here.
Lower the overclock and voltage slightly to 4.4-4.5 GHz Can be an overheating VRM on your board especially if yours is a 970 board or your board does not have VRM heatsinks. Or you can attach a small fan to cool your VRM.

1.CPU check- If using a 990 board see here.
If yours is a 990X or 990FX board with heatsinks on VRMs, then check your GPU. Go to part 2.

2.- GPU check.
Your GPU might not have enough power supplied to it. If it is factory overclocked, lower stock clocks by 25 MHz (2%) and increase the Power Limit to 20%. FPS drops and artifacting is usually caused by overzealous overclocks. I generally dont support GPU overclocking since most GPUs gain very little from overclocking. Go to part 3 if you do not overclock GPU.


3. Minecraft settings check.
If your Minecraft is VERSION 1.7 OR 1.8 THEN SEE HERE FIRST.
But since you said that other games run fine (you sure?) then you should check settings for minecraft. What is your Antialiasing and Anisotropic Filtering Settings? Lower them under performance tab, maybe you set them both to 16x. Set to 2x or Off first. Go to part 4 once done.

4.GPU settings check
Then check your Radeon Settings. For antialiasing choose use application settings, mode of antialiasing should be multisampling NOT supersampling. And Tesselation should be AMD Optimised or lower for more FPS.

Hope this helps.
 
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Solution
K

kgt1182

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Jun 8, 2016
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Its definitely not your RAM. You should be getting at least 60+ FPS on AMD CPUs with a sufficient GPU. In minecraft CPU matters more than RAM. So most likely your CPU overheats, lack of voltage, or VRM overheats.
 
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