In addition to slightly faster CPUs, the Late 2011 model comes with 50% more spacious hard drives – 500 GB instead of 320 GB on the base model and 750 GB (up from 500 GB) on the 2.4 GHz version. The top-end version goes from 2.2 GHz to 2.4 GHz, a 9% improvement. The 15″ model advances from 2.0 GHz to 2.2 GHz, a 10% speed bump.
The Late 2011 MacBook Pros represent a small step forward from the Early 2011 models introduced 8 months earlier.