Should I go Dual Core or Quad Core? Intel C2 DUO E6850 vs. Quad-Core Q6600

'Matt' wrote:
| I would say I'm open to swapping the CPU I get for a new one in the
| future, but not that soon.
|
| Basically, if I can overclock the Q6600 to 3.0GHz using a 1333MHz FSB,
| using only the stock cooler, without reducing the life of the chip; then
| I will get the Q6600.
|
| Is this possible?
_____

Yes. See alt.comp.hardware.overclocking .

Phil Weldon

"Matt" wrote in message
...
| Short-term the E6850 is probably the faster choice, so if you expect or
| are planning to swap out your CPU in about half a year, then perhaps
| that's the better choice.
|
| I would say I'm open to swapping the CPU I get for a new one in the
| future, but not that soon.
|
| Basically, if I can overclock the Q6600 to 3.0GHz using a 1333MHz FSB,
| using only the stock cooler, without reducing the life of the chip; then
| I will get the Q6600.
|
| Is this possible?
|
| Kind Regards,
|
| Matt

Matt wrote:

Short-term the E6850 is probably the faster choice, so if you expect or
are planning to swap out your CPU in about half a year, then perhaps
that's the better choice.

I would say I'm open to swapping the CPU I get for a new one in the
future, but not that soon.

Basically, if I can overclock the Q6600 to 3.0GHz using a 1333MHz FSB,
using only the stock cooler, without reducing the life of the chip; then
I will get the Q6600.

Is this possible?

Kind Regards,

Matt

The Q6600 G0 stepping is easily overclocked to 3.0 GHZ.
I run mine at 3.2 Ghz on air cooling and my temps when
under extreme load ( Prime95 ) never approach the max within
10C. Under my normal load the temps are 20-25C below the max.

Paul

In article , Gypsy Baron wrote:

The Q6600 G0 stepping is easily overclocked to 3.0 GHZ.
I run mine at 3.2 Ghz on air cooling and my temps when
under extreme load ( Prime95 ) never approach the max within
10C. Under my normal load the temps are 20-25C below the max.

Out of curiosity, since you give relative values:

What temperature do you see for the Q6600 as a whole?

And what are each of the core's temperatures?

Regards,

Patrick.

Patrick Vervoorn wrote:

In article , Gypsy Baron wrote:

The Q6600 G0 stepping is easily overclocked to 3.0 GHZ.
I run mine at 3.2 Ghz on air cooling and my temps when
under extreme load ( Prime95 ) never approach the max within
10C. Under my normal load the temps are 20-25C below the max.

Out of curiosity, since you give relative values:

What temperature do you see for the Q6600 as a whole?

And what are each of the core's temperatures?

Regards,

Patrick.

Right now just running in 2D mode with browser I'm seeing
Tcase at 38C, core 0 45C, 1= 42C, 2 = 39C and 4 = 45C

My room ambient is 16C and hard drives are at 33C.
My 8800GTS GPU is at 56C.

Running Prime95 now I see Tcase = 50C, 0=58C, 1 = 48C, 2= 47C 3 = 59C.
Tcase MAX for the 6600 G0 is 71C.

I'm using Speedfan with the -15C temperarure adjustment applied.
Measurement readouts using Everest are the same.

CPU: Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Processor
Model BX80562Q6600
M-Board: GIGABYTE GA-P35C-DS3R LGA 775 Intel P35 ATX Intel Motherboard
Memory: 2 X CORSAIR Dominator 2GB DDR2 SDRAM DDR2 1066 (PC2 8500) Dual
Channel Kit ( $GB total )
Video: EVGA 640-P2-N821-AR GeForce 8800GTS 640MB 320-bit GDDR3
HD's: 2 x Seagate Barracuda ES ST3250620NS 250GB 7200 RPM SATA
3.0Gb/s
Power: Thermaltake Purepower RX W0143RU ATX12V 550W Cable Management
Case: COOLER MASTER Centurion 534 RC-534-KKN2-GP ATX Mid Tower Case
Cooling: Rosewill RCX-Z775-EX 92mm 2 Ball PWM CPU Cooler

Paul

On Mon, 07 Jan 2008 18:04:46 +0000, Matt
wrote:

Short-term the E6850 is probably the faster choice, so if you expect or
are planning to swap out your CPU in about half a year, then perhaps
that's the better choice.

I would say I'm open to swapping the CPU I get for a new one in the
future, but not that soon.

Basically, if I can overclock the Q6600 to 3.0GHz using a 1333MHz FSB,
using only the stock cooler, without reducing the life of the chip; then
I will get the Q6600.

Is this possible?

Kind Regards,

Matt


First, help us understand why the 3.0GHz figure. Did you
see one of my other posts where I mentioned the heat factor,
that you can overclock a dual core further than a quad (more
than 3.0GHz) before any particular cooling system becomes
the limitation.

It might seem as thought I am trying to steer you to a dual
core instead of quad. Perhaps, because it does seem it will
offer you more performance for the described uses, but in
the end I don't have to use the system and only present what
seems an overlooked aspect.

In article , Gypsy Baron wrote:
Patrick Vervoorn wrote:

Out of curiosity, since you give relative values:

What temperature do you see for the Q6600 as a whole?

And what are each of the core's temperatures?

Right now just running in 2D mode with browser I'm seeing
Tcase at 38C, core 0 45C, 1= 42C, 2 = 39C and 4 = 45C

Tcase is the temperature indicated by a case- or motherboard-sensor? Or is
this the 'overall' temperature of the Q6600?

Core temperatures look ok, but perhaps a bit high for an idle system?

My room ambient is 16C and hard drives are at 33C.
My 8800GTS GPU is at 56C.

Sounds similar to what I have.

Running Prime95 now I see Tcase = 50C, 0=58C, 1 = 48C, 2= 47C 3 = 59C.
Tcase MAX for the 6600 G0 is 71C.

What do you mean with Tcase MAX? The maximum temperature you ever saw, or
the temperature until which a Q6600 G0 is certified to work ok? If that's
indeed the 'overall' temperature of the Q6600, at 71C I expect the cores
to be around 90 to 100 C?

I'm running a Q6600 using the default Intel cooler, no overclocking, and
it's running SetiBOINC 24/7. I get an 'overall' temperature of around
55-57C, with the cores hovering around the 65-70C mark. I might have to
experiment a bit with the settings of the case-fans, since I'm using an
Antec P182 case with all of the case-fans set at the lowest speed.

I'm using Speedfan with the -15C temperarure adjustment applied.
Measurement readouts using Everest are the same.

What do you mean with "the -15C temperature adjustment"?

Regards, Patrick.

Patrick Vervoorn wrote:

In article , Gypsy Baron wrote:
-SNIP-
Right now just running in 2D mode with browser I'm seeing
Tcase at 38C, core 0 45C, 1= 42C, 2 = 39C and 4 = 45C

Tcase is the temperature indicated by a case- or motherboard-sensor? Or is
this the 'overall' temperature of the Q6600?

Tcase is reported by the Q6600 sensor as well as the individual core
sensors.

Core temperatures look ok, but perhaps a bit high for an idle system?

I'm running overclocked to 3.2Ghz with the voltage at 1.4V.
The individual cores are typically 7C higher than Tc but also
read various values in between.

My room ambient is 16C and hard drives are at 33C.
My 8800GTS GPU is at 56C.

Sounds similar to what I have.

Running Prime95 now I see Tcase = 50C, 0=58C, 1 = 48C, 2= 47C 3 = 59C.
Tcase MAX for the 6600 G0 is 71C.

What do you mean with Tcase MAX? The maximum temperature you ever saw, or
the temperature until which a Q6600 G0 is certified to work ok? If that's
indeed the 'overall' temperature of the Q6600, at 71C I expect the cores
to be around 90 to 100 C?

Tc is the value Intel uses to spec the temperature limits, etc.
See the following Intel document and have a look at the charts
on page 75 for the Q6600 G0 ( 95W ) chip.

ftp://download.intel.com/design/proc...s/31559205.pdf

-SNIP-
I'm using Speedfan with the -15C temperarure adjustment applied.
Measurement readouts using Everest are the same.

What do you mean with "the -15C temperature adjustment"?

Regards, Patrick.

First, that should be an offset of +15C....without it Speedfan will
read the Core temps 15C lower than actual. Sorry for the error.

Speedfan reports temperatures based on a particular sensor
reference point, as I understand it. It has been reported
on several overclocking sites that for the Q6600 ( and possibly
others ) the Speedfan data is incorrect unless one applies a
+15C adjustment. This can be done by going to the "Configure" tab,
"Advanced", select "Intel Core" from the drop down list and enter
a temperature offset of "15" for each core.

I'm using Speedfan version 4.33 BTW. As I mentioned earlier, the
adjusted temps corellate with Everest. Everest calls Tc "CPU" temp
while Speedfan reports it as "Temp2" on my motherboard. Speedfans
"Core" temp is the 8800GTS GPU temp.

Paul

In article , Gypsy Baron wrote:
Patrick Vervoorn wrote:

In article , Gypsy Baron wrote:

Tcase is the temperature indicated by a case- or motherboard-sensor? Or is
this the 'overall' temperature of the Q6600?

Tcase is reported by the Q6600 sensor as well as the individual core
sensors.

Aha, ok. It's what listed as the 'CPU' temp in Everest, and something like
Temp3 in SpeedFan (IIRC, not in front of the system at the moment). It's
also the CPU temperature as reported by nTune.

What do you mean with Tcase MAX? The maximum temperature you ever saw, or
the temperature until which a Q6600 G0 is certified to work ok? If that's
indeed the 'overall' temperature of the Q6600, at 71C I expect the cores
to be around 90 to 100 C?

Tc is the value Intel uses to spec the temperature limits, etc.
See the following Intel document and have a look at the charts
on page 75 for the Q6600 G0 ( 95W ) chip.

ftp://download.intel.com/design/proc...s/31559205.pdf

Very enlightening, thanks for the link.

What do you mean with "the -15C temperature adjustment"?

First, that should be an offset of +15C....without it Speedfan will
read the Core temps 15C lower than actual. Sorry for the error.

Speedfan reports temperatures based on a particular sensor
reference point, as I understand it. It has been reported
on several overclocking sites that for the Q6600 ( and possibly
others ) the Speedfan data is incorrect unless one applies a
+15C adjustment. This can be done by going to the "Configure" tab,
"Advanced", select "Intel Core" from the drop down list and enter
a temperature offset of "15" for each core.

I'm using Speedfan version 4.33 BTW. As I mentioned earlier, the
adjusted temps corellate with Everest. Everest calls Tc "CPU" temp
while Speedfan reports it as "Temp2" on my motherboard. Speedfans
"Core" temp is the 8800GTS GPU temp.

Yes, I compared the readouts from Everest and SpeedFan (also 4.33) and
indeed SpeedFan's core-temperature were off by 15C, so I'm seeing the
same.

Thanks for the explanation!

Regards, Patrick.