Dual Core 4ghz vs C2D 2Ghz (merom Laptop)

[richklein]

Hi,

I was curious, I was playing with a Dell laptop earlier today. I ran Superpi on it the laptop (2ghz C2D, Vista, 1 gig of ram).

The results were: 1mb superpi
2ghz C2D Laptop - 27 seconds
4ghz Dual Core Desktop - 42 seconds

I was curious why there would be that much of a speed difference. I know the C2D is faster at 2ghz than 4ghz (dc) but thats a big difference.

Is Superpi the main difference between the two? It got me thinking that a C2D processor would be even better.

Thanks,
Rich

[inkfx]

Of course the C2D is better. It's a whole different technology which is better, faster, and more efficient in every way.

[richklein]

I guess i was a bit surprised since laptops (in the past) tended to be much slower than desktops.

What I was asking, is it just superpi thats faster at those two speeds? In "real world" performance, is a C2D @ 2ghz always faster than a DC at 4ghz?

[richklein]

InkFX - is your PC twice @ 3.7ghz C2D twice as fast as my 4ghz DC in every regard?

[Captain Helghas]

All C2D are faster than the fastest Pentium D or AMD x2 chips, even at stock for the C2D, for almost every program.

The adjectives are only there as a disclaimer in case I've overlooked anything.

[inkfx]

What I was asking, is it just superpi thats faster at those two speeds? In "real world" performance, is a C2D @ 2ghz always faster than a DC at 4ghz?
Probably so. Like I said, the C2D is brand new. It's like going from a bike to a Hyabusa.

InkFX - is your PC twice @ 3.7ghz C2D twice as fast as my 4ghz DC in every regard?
I could probably stick this thing at stock and still perform better. At 3.7Ghz the benchmarks aren't even in the same ballpark.

Here is a SuperPi run at 3.7Ghz. I can do better, I just havn't played with it all to much.
http://img223.imageshack.us/img223/1109/superpi1m3720mhzpn3.jpg

[Tyranos]

Ink, shouldn't you be getting ~13s super pi 1m?

[inkfx]

Ink, shouldn't you be getting ~13s super pi 1m?
No. I wish, though.

[hUMANbEATbOX]

Ink, shouldn't you be getting ~13s super pi 1m?
if he had a e6600 like YOU, then maybe. to get ~13s on a 2mb chip, you need ~4000mhz.

[SCORPIONlt1]

42 sec with 4Ghz duel core seems a little slow. I know the C2d will def. win but my old 3.2 pressy @4.1Ghz would do 30 sec.