Minecraft FPS drops

danielnicee

Honorable
Nov 12, 2013
24
0
10,510
While I'm playing, the FPS drops randomly. I'm playing at 55-60 fps, and then suddenly it drops to 40 fps. Goes right back up to 60 fps, then a few seconds pass and it might drop again down to 20 fps/30 fps and such, then goes back up to 60 fps.
These drops are completely random.
They're not an overheating problem, because I checked with HWMoniter and the temps are at 30º for almost everything.
All my drivers are updated. Other games work perfectly. There shouldn't be any problems for it to play at even more than 60fps, as I get 50 fps on Battlefield 4.


My PC Specs are:

Cpu: AMD FX-6300 3.5Ghz
RAM: 8GB
GPU: Gigabyte GTX 650 Ti



With these specs, achieving about 50fps on BF4, I'd expect not only NO fps drops, but more than 60fps on average.
(This is my friends PC, I just decided to talk in first person.)
 
Solution
I Think i know whats the problem, Try these...

1. Allocate more memory on Java
2. If you have any mods such as Sonic's Unbelievable Shaders try turning them off

I think that you don't allocate enough memory, i doesn't matter that you have 8GB of memory, even 64GB if the allocation is in 1GB

Georgey

Honorable
Feb 16, 2014
22
0
10,520
I Think i know whats the problem, Try these...

1. Allocate more memory on Java
2. If you have any mods such as Sonic's Unbelievable Shaders try turning them off

I think that you don't allocate enough memory, i doesn't matter that you have 8GB of memory, even 64GB if the allocation is in 1GB
 
Solution

danielnicee

Honorable
Nov 12, 2013
24
0
10,510



No mods installed. It'd be great if you could help tell me how to allocate memory.
I was thinking that it might be that because when pressing F3 in-game, it says "Allocated memory (484mb)".
 

Georgey

Honorable
Feb 16, 2014
22
0
10,520
500MB Of memory are too low, for Minecraft, i think i can guide you to at least 1 GB...

1. Open your Minecraft launcher
2. Go to "Edit Profile"
3. Enable "JVM Arguments"
4. Then it should be something like this = "-Xmx1G"
5. Change the Number of "-Xmx1G" To something like "-Xmx4G"
(The "G" Stands for Gigabytes and the number before it stands on how many gigabytes you allocate)
6. Then click "Save Profile" And then click "Play"

"IF you get a message saying "Error: Could not create the Java Virtual Machine." and "Error: A fatal exception has occurred. Program will exit." That means that you tried to allocate more memory then your PC has free for it"

Optional: Try installing Optifine too its a mod which basically give you more fps in Minecraft and it removes lag spikes