I just helped @_Itzflutter_ and @_arcticdragon_ with this so in case you all have the same problem like I did xD *google told me this* Firstly I tried this but it didnt work for me but worked for _arcticdragon_ 1. Go on MC Launcher. 2. Click "Edit Profile" for a 1.9 profile 3. At the bottom it should say "JVA Arguments" highlight that and remove the thing in that box and copy and paste this inside -Xmx3G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn500M 4. Launch MC and see if it works Next I tried this which worked for me and flutter 1. Launch 1.9 MC 2. Go into Options and Video Settings 3. Make sure VSync is on 4. Also, make sure VBOs is on 5. Launch Minecraft and join a 1.9 server and see if it works! Good luck!
I use 1GB and I haven't bothered to change it because my computer used to always sound sound like the fan was going to explode.... (I use a laptop, docking station and a monitor....) I also categorise it as 'greed' since we can survive with low 7fps