My i7 950 is a real dud (P.O.S.). I am surprised I can even post some 4 GHz benches. I screwed up on the superpi 1M screenshot and didn't change one of the CPUZ windows to display the mainboard information.
Superpi 1M = 10.109 (1600 MHz RAM)
Superpi 1024M = 9m 5.096s (1600 MHz RAM)
wprime 1024M = 189.636 (1600 MHz RAM)
wprime 32M = 6.114 (1600 MHz RAM)
wprime 32M = 6.101 (2000 MHz RAM)