Cerebrai, on 16 February 2012 - 07:39 AM, said:
I'm seriously surprised this has not been said yet!

- Here is your absurdly easy solution

:
Right click Minecraft.exe , "run with graphics processor", "High performance *blankblankblank*", problem solved!

.
Minecraft does automatically use the integrated gpu, and you need to tell it not to. Even if you set your gaming gpu to open MC with it instead of the integrated, it won't unless you manually do the method above instead of just double clicking. Yes there are other troubles such as you using the incorrect java version (32 instead of 64, and reversed), and low ram allocation can be detrimental to your fps, but the assigned gpu (graphics processing unit / video card)being the integrated is the largest problem.
You are referring to a proper gaming card...most laptops dont have that...mine has Intel HD Graphics and i can run mine fine IF it is only running on one processor...
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IF YOU GUYS HAVE GOOD GRAPHICS CARD, RAM, AND OTHER SHIT BUT HAVE LAG RUNNING MINECRAFT READ THIS...
Minecraft was meant to run on SINGLE processor systems, since most systems have dual processors(laptops do have dual)
it has not been correctly utilized to run on those...
FIX
1. Find out a way to see which processor has the most usage(ANY way)...memorize this processor number
2. Open Task Manager
3. Right click 'javaw.exe'(your minecraft process)
4. Select Affinity
5. Change this to ONLY the processor which has the LEAST amount of usage, this is generally the second processor
6. Wait a few seconds
7. .....
8. IS IT FIXED???
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Reisyukaku, on 20 February 2012 - 03:54 AM, said:
my minecraft lags a bit with the GLSL shaders on. i'd like to think its a java limitation because my computer can run Crysis 2 and BF3 on highest with absolutely no lag. I even allocated 4GB to java process.
my specs:
AMD Phenom II x6 @ 3GHz
8GB RAM
Radeon HD 6950
This is caused by the GLSL shaders using OpenGL...which isn't very good, if you still want a realistic minecraft feel, get Water Shader, download my custom shader lag reducing settings(will upload n a few days), and get a realitic texture pack