how do I reproduce it?
Just having render distance of about ~12 and try to play, occassionaly happens with lower distances too, after a few minutes
The game is unplayable, I'm having lags in single player game (digg blocks, and they reappear, and then disappear after few seconds), frame rate of 20fps (this is a shame with this gpu!) and random freezes
Similiar things happen with previous versions, like 1.7.4 / 1.7.2, but it also gives GL_ERROR: OUT OF MEMORY all the time and game freezes
I reported it previously, but some retard closed my ticket with a reason "modified client" even though it was stated that it is vanilla. So I say it again, it is vanilla client without any modifications.
You have 32 bit Java. Please update your Java to the latest 64 bit version (1.7.0_55 / 1.8.0_05): http://www.java.com/en/download/.
When using a 32-bit browser on a 64-bit operating system the automatic version detection will only show the 32-bit version of Java, the 64-bit version needs to be downloaded manually: http://www.java.com/en/download/manual.jsp.