i have:
athlon 18XP and using 32 bit MMX SSE.....encoding CCE take 4,5hour
P4 2,4 533 and using 32 bit MMX SSE2...encoding CCE take 6,5 hour
CCE250

is posible that allmost one time higher frequency (1800XP is 1533Mhz)
encoding take longest


Am i making some mestake or what

Need your sugestions AND OFCOURSE SOLUTIONS
becaouse i think that P4 2,4Mhz must work faster than XP1800+

Regards