bb2k, first of all delta T would be 38,4-20 =18,4.
Then to heatload,according to amd specs on palomino core cpu, 1600+ (1400Mhz 1,75V) maximum thermal power is 62.8W and 56.3W is typical thermal power, if I take this numbers in calculator, typical thermal power for 1950@2,1V would be 112W similar benctest number.
You do the math if thats better then dd2
Puzzdre , when I started cnc machining... ufff, only imagination is the limit