Based on the information that has been posted here, it appears that two things are happening:
1). Everyone is seeing MT results that are (at best) equal to n-1/n * 100% of what they should be seeing. For example, someone with a quad is seeing 75% of the MT result that they should get for the chip
2). Anyone using two logical cores is seeing LESS performance than 50% since the benchmark is loading up an extra background thread on one core and doing practically nothing with the second core
Should be interesting to see what the fix does to address the problem. Then I'll know if my estimates are correct.
btw, I reran it at 4.7 GHz: 1141/3332
http://www.xtremesystems.org/forums/attachment.php?attachmentid=132437&d=1440227194
The memory for my first run was DDR3-1600 CL9 (better than I thought, oh well)
The memory for my 4.7 GHz run was DDR3-2400 CL10