There might be some silver linings here,
They tested with DDR3 1866MHz which is the max supported RAM speed for BD and under settings people actually game at the 8150 came out slightly better in all (3) games tested. H also reported the 8150 to be better than the 2600k for BF3 Beta.
Maybe faster memory is needed? And maybe we should be looking at actual settings people use. There could be some bottleneck that is making the results at low res a lot worse.