2.8c vs 3.0c

fynanceguy · Post by **fynanceguy** » Fri Mar 12, 2004 11:58 pm

I am looking to build a "quiet" pc for my home. I have vaulted ceilings (room has alot of echo)

Other than the $40 difference, should I go with the 2.8c because of the lower heat produced? I heard the difference between the two is 15 watts.

How much difference in computing power between the two, considering I have an Ati 9800pro 128meg video card. I do some rendering and games.

Thanks

fynanceguy

munichkid · Post by **munichkid** » Sat Mar 13, 2004 5:06 am

Pocket the $40
I have the EXACT same setup as you are looking into
If you get the right MB you can overclock it to 3.0 if deemed necesssary but when I did the was virtuall NO difference in speed.
Keep the money and put it towards good RAM.

fynanceguy · Post by **fynanceguy** » Sat Mar 13, 2004 9:25 am

Saving cash cash is nice. Having a quiet computer is even nicer!

Because of my room acoustics, my computer sounds louder than if I had it in another room.

I was looking at the 2.8c instead of 3.0c because of the heat difference (approx. 15 watts?) with the thought, with less heat, I can run a slower rpm fan.

How much of a performance hit would I take by using the 2.8c instead of the 3.0c?

10%??

Thanks,

fynanceguy

NullObject · Post by **NullObject** » Sat Mar 13, 2004 12:38 pm

fynanceguy wrote:Saving cash cash is nice. Having a quiet computer is even nicer!

Because of my room acoustics, my computer sounds louder than if I had it in another room.

I was looking at the 2.8c instead of 3.0c because of the heat difference (approx. 15 watts?) with the thought, with less heat, I can run a slower rpm fan.

How much of a performance hit would I take by using the 2.8c instead of the 3.0c?

10%??

Thanks,

fynanceguy

In cpu speed ~7%. In terms of overall system speed, it depends on what you are doing and what other components you have in the system. You'll only notice the difference when doing things where cpu speed is the limiting factor, like Folding.

m0002a · Post by **m0002a** » Sat Mar 13, 2004 1:25 pm

I have the same question. Is there a significant difference in heat between the 2.8C and 3.0C?

rapidone · Post by **rapidone** » Tue Apr 06, 2004 3:39 am

A 2.8Ghz with M0 stepping (SL6Z5 product code and 1.425volts) should run significantly cooler than the 3.0Ghz.

I'm getting amazingly cool temperatures with mine. At idle I can't feel any heat in the base of the heatsink at all. The temperature is being reported as the same as the motherboard at idle around 26-27C.

Under load and overclocked to 3.15Ghz the temperature is reading as 46C with the stock heatsink and fan running at around 2400 rpm (max is 2700 I think).

Room temperature is around 21C.

EDIT : Ok I replaced the stock HSF with a Zalman 7000A AlCu heatsink and fan running at full speed. The temp is 38C at 3.36Ghz full load and 1.6Volts room temp is 23C.