when the cpu makers intel and amd sy there procesors r dual core, what exactly do they mean?
ie, does a intel 3.0ghz dual core hav
1)2 x 1.5ghz cores inside
2)2 x 3.0ghz cores inside
is it the same for amd as well?
is it the same for AMD though?
some of the dual core amd's run a 2.2ghz which is a bit low even if u take into accoutn the faster fsb and more cache
they both run at 3 ghz, they are both running processing threads, but they are still only running at 3 ghz each, so it is not nessesarily all that faster, but It can be very very efficient, because if one core is loaded with processes, the other core takes some of the load. But you wont see a giant leap in speed, just that things run a lot smoother.
It's just dual-cpu emulation. It demonstrates the difference between power and speed.
Normal 3Ghz cpu: 1.5 Gflops (billion floating operations per second)
Dual-core 3Ghz cpu: 3 Gflops
Linux cluster with 6 computers at 3Ghz: 9Gflops
(I'm basing this on one operation taking two cpu cycles) It's only really usefull if you need a lot of raw power, and you have well parelelized code.
lemme tell you..
1 processor can run 1 process at a time..
2 processors can run 2 processes at a time..
So with dual core 3.0Ghz means that there are two processors running at 3.0Ghz.. And it will be twice faster.. than an ordinary 3.0Ghz Single Core.. But this doesn't mean that the whole thing is 6.0Ghz