hi
i was looking for the memory controler those due about his efficasity
in amd s754 case the efficasity is alwais 95-98 range so u will get rawlly the max memory brandwidh
running @ 200 default A64 3000+ i was getting 98% of effcasity=3136
with timing 7-3-3-2.5t
running @ 270 A64 3000+(2430) i was also getting 98% of effcasity with 1:1 ratio =4215 with timing 7-3-3-2.5t
in the amd 939 case is a bit deferant with a lot lower efficasity using the dual channel
@ 2700 300*9 and memory(2*512) @ 166 (250mhz) 7-3-3-2.5t
in theorie with 100% efficasity i must get 8000mb/s but i am only getting 90-89% range about 7000-7100 mb/s
@2970 330*9 and memory@~248 7-3-3-2.5t i am getting the same about 90-89 range
so the cpu speed is not issue ,is not holding the memory brandwidh back
as i know no nothbridge in those nforce3,4 mobo and the memory controler is inside the cpu so the mobo is not issue here
can anyone explain to me why there is no 98-95% range efficasity.
is it the duall channel eating from the cpu efficasity of brandwidh or what exactly
thanks
i was looking for the memory controler those due about his efficasity
in amd s754 case the efficasity is alwais 95-98 range so u will get rawlly the max memory brandwidh
running @ 200 default A64 3000+ i was getting 98% of effcasity=3136
with timing 7-3-3-2.5t
running @ 270 A64 3000+(2430) i was also getting 98% of effcasity with 1:1 ratio =4215 with timing 7-3-3-2.5t
in the amd 939 case is a bit deferant with a lot lower efficasity using the dual channel
@ 2700 300*9 and memory(2*512) @ 166 (250mhz) 7-3-3-2.5t
in theorie with 100% efficasity i must get 8000mb/s but i am only getting 90-89% range about 7000-7100 mb/s
@2970 330*9 and memory@~248 7-3-3-2.5t i am getting the same about 90-89 range
so the cpu speed is not issue ,is not holding the memory brandwidh back
as i know no nothbridge in those nforce3,4 mobo and the memory controler is inside the cpu so the mobo is not issue here
can anyone explain to me why there is no 98-95% range efficasity.
is it the duall channel eating from the cpu efficasity of brandwidh or what exactly
thanks