Windows .exe Low FPS, very laggy.

[Atrox]

On vanilla minecraft I usually get around 60FPS on high settings, allocated memory 50%(495MB), used memory 20% of 989MB, and it works perfectly.
On FTB it's always around 20FPS on low settings, allocated memory 34%(336MB), used memory 22% of 989MB, and it laggs quite a lot.
I tried to increase RAM in launcher (min 1024MB, max 2048MB) but it crashes instantly after launching.
Specs: win 7, intel i7, 6GB DDR3, nvidia GeForce GT 525M,....

 

[Lawbroken]

On vanilla minecraft I usually get around 60FPS on high settings, allocated memory 50%(495MB), used memory 20% of 989MB, and it works perfectly.
On FTB it's always around 20FPS on low settings, allocated memory 34%(336MB), used memory 22% of 989MB, and it laggs quite a lot.
I tried to increase RAM in launcher (min 1024MB, max 2048MB) but it crashes instantly after launching.
Specs: win 7, intel i7, 6GB DDR3, nvidia GeForce GT 525M,....

You said it crashes if you put more RAM can you pastebin to help the people trying to help you with your problem.

Thanks.

 

[Atrox]

http://pastebin.com/6PPyYXX3
here it is

 

[Lawbroken]

If you haven't tried downloading and installed Optifine and change some of the settings in that should boost FPS.

Download link for optifine :
http://www.minecraftforum.net/topic...a7-fps-boost-hd-textures-aa-af-and-much-more/

tut how to install Optifine if you don't know how : http://forum.feed-the-beast.com/index.php?threads/how-to-install-optifine.860/

 

[Meldiron]

You'r currently running the launcher and minecraft on 32bit java.
There used to be some bat files that fixed both that and the memory limit but not sure where to find those now.
There are probably other ways to fix that too, getting it to run on 64bit java should give a considerable fps boost, does for me at least.

 

[Atrox]

I downloaded 64bit java, now I have 20-30FPS, that's something. I had this problem before with Magic Launcher (Optifine launcher), I solved it by force updating with original minecraft launcher.

 

[Lawbroken]

Don't use magic launcher. Optifine in the folder with forge will allow you to do what magic gives you plus more.

At least we are gaining FPS =D