GRE Verbal and Quantitative Scores
If you took the GRE prior to August 2011, your Verbal and Quantitative scores can range from 200 to 800 points, in 10 point increments. The Revised GRE reports Verbal and Quantitative scores on a scale from 130 to 170 points, in 1 point increments.
GRE Analytical Writing Score
The Revised GRE contains no change to the GRE Analytical Writing score. The GRE Analytical Writing score ranges from 0 to 6 in half point increments.
As of this writing (July, 2011), Educational Testing Service, the makers of the GRE, have not released information about test norms, so it is unclear what a 150, for example, means. More information on score interpretation will be available in November, 2011 after the Revised GRE has been administered beyond it's initial testing/norming phase.