Thread: Building a Desktop

Originally Posted by Killuminati

I only overclocked for a bit, and I have a core 2 duo 1.86ghz. Honestly though who would keep a cpu for 10 years, last time I checked Moore's law still held true.

i don't know enough about heat generation in CPUs to say how much of a factor less ideal heat dissipation is in this case.

to be fair about moore's law, yes, the density of transistors is increasing according to said "law," but the limiting factor to actual increased speed it/is going to be heat dissipation.

as for increased transistor density, the limiting factor is going to be the gate oxide, since below a certain thickness electron tunneling is going to limit how thin a gate oxide and be. on top of that, the gate oxide in a MOSFET has to be significantly thinner than the width of the transistor. to make a thinner dielectric layer, we could use other oxides besides silicon dioxide with higher k values (higher polarizability), most notably hafnium oxide.

Originally Posted by sycld

to be fair about moore's law, yes, the density of transistors is increasing according to said "law," but the limiting factor to actual increased speed it/is going to be heat dissipation.

And power draw.

Originally Posted by TheOriginalGrumpySpy

And power draw.

no, the limits imposed by suppliable power have not yet been reached, but we are reaching the limits imposed by heat generation and tunneling. or link me something if I'm wrong.

Originally Posted by sycld

no, the limits imposed by suppliable power have not yet been reached, but we are reaching the limits imposed by heat generation and tunneling. or link me something if I'm wrong.

I know tunneling is an issue.

It wasn't that it was impossible to draw the power, but that in cost/benefit.. it no longer was a viable option.

Go go quantum computing in 100 years.

Originally Posted by TheOriginalGrumpySpy

I know tunneling is an issue.

It wasn't that it was impossible to draw the power, but that in cost/benefit.. it no longer was a viable option.

Go go quantum computing in 100 years.

perhaps that's true, but tunneling and heat dissipation are different in that they are physical limits that will literally not allow the device to operate, economically or not.

as for quantum computing, it unfortunately is only more efficient than a classical computer for a rather circumscribed set of a problems, if it can be implemented at all.

Originally Posted by sycld

perhaps that's true, but tunneling and heat dissipation are different in that they are physical limits that will literally not allow the device to operate, economically or not.

as for quantum computing, it unfortunately is only more efficient than a classical computer for a rather circumscribed set of a problems, if it can be implemented at all.

All that's currently possible with quantum computing, as far as I'm aware is double digit addition.

Tunnel and Heat dissipation of course are the more pertinent issues. More so tunneling given Moores. We are at the micrometer range already, if I recall.