This is a guide to show you how to Increase both Allocated Memory and Fps for you Minecraft Client AKA: No More Lag! This will increase both fps and memory. So things like "Out of Memory Crashes" won't happen while playing Minecraft. This will also create smoother game play due to the fps increase. So what is allocated memory: In simple terms it is the amount of RAM your computer dedicates to programs that are currently running. [size=14pt]Notice:[/size] I have only done this on my 64 bit windows 7 computer. I am about 99% sure that this won't work on mac and it may not have the same affect on a 32 bit computer. ALSO: Make sure you are using the right Java for your computer! Step 1: Hit your windows key and type in "run" (without the "). In the run box type in dxdiag and hit enter. Somewhere on that screen there should be something like Ram: **** or Memory: ****. That is the amount of allocated memory your computer has. Step 2: Make a text document. Do this by: right clicking your desktop > New > Text Document. Step 3: In the text document type in: javaw -Xmx0000m -Xms0000m -jar "C:\Location of Minecraft.exe\minecraft.exe" Instead of the 0000 put the number out of your RAM that you would like to use. You should leave at least 1 GB of RAM for other programs. To check where you minecraft.exe is located: Right Click Minecraft > Properties. For me it would look like this: javaw -Xmx4500m -Xms4500m -jar "C:\Users\Cameron\Desktop\minecraft.exe" This is a list of the GB=MB conversions: 1GB 1024 2GB 2048 3GB 3072 4GB 4096 5GB 5120 6GB 6144 7GB 7168 8GB 8192 Step 4: Now, save the file you just made as a .bat file. How to: File > Save As > Type in Minecraft.bat > Save Step 5: Your all done! YAY! Just Open up the .bat file you made and it should open up your minecraft with an increased amount of RAM! If you have any troubles post below and I will help you out ASAP.