plz explain why My X2 @ 2450 outscoring my 165 @ 2.9

[[cTx]Philosophy]

x2 has 8k some 165 has 6k some 165 was installed first and its getting ownd by the X2?

X2 3800 @ 2450 2X512 ch-5 underclocked because one of the dimms is blown @ below 180for 2-2-2
there clocked at like 166 some i think

165 @ 2.9 2X 1024 be-6 2.5-3-2-5 243 mhz getting ownd by underclocked X2 on a shidy os install thats 3 yrs old almost?

Wierd I tell ya