Current Top Ten Lists (Single CPU / Multiple CPUs)
#1 Intel Core i7 995X @ 3.60GHz
#2 Intel Core i7 980X @ 3.33GHz
#3 Intel Core i7 990X @ 3.47GHz
#4 Intel Core i7 970 @ 3.20GHz
#5 Intel Xeon X5680 @ 3.33GHz
#6 Intel Xeon W3680 @ 3.33GHz
#7 Intel Core i7-2600K @ 3.40GHz
#8 Intel Xeon X5670 @ 2.93GHz
#9 Intel Core i7-2600 @ 3.40GHz
#10 Intel Xeon X7560 @ 2.27GHz
#1 [Quad CPU] AMD Opteron 6174
#2 [Quad CPU] AMD Opteron 6168
#3 [8-Way] Six-Core AMD Opteron 8435
#4 [Dual CPU] Intel Xeon X5680 @ 3.33GHz
#5 [Quad CPU] Intel Xeon X7460 @ 2.66GHz
#6 [Quad CPU] Intel Xeon X7350 @ 2.93GHz
#7 [Dual CPU] Intel Xeon X5660 @ 2.80GHz
#8 [Dual CPU] Intel Xeon X5670 @ 2.93GHz
#9 [Dual CPU] AMD Opteron 6176 SE
#10 [Dual CPU] Intel Xeon X5650 @ 2.67GHz
All results are from Benches on:Passmark Software
Here's more info.
Edit: fixed the links.