Is Kentsfield really a power hunger monster?!let's see the power consumption !

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11-01-2006, 06:25 AM
IluvIntel

Peaking at 69% increse over dualcore with full load.... not sure if these Kentsfields are going to be worth it for my use.
11-01-2006, 06:39 AM
dinges

Quote:

Originally Posted by Hooker

Ok, question from the uneducated.

Should I want to build a QX6700 with a G80-GTX/r600-XTX with 4GB PC2-6400 & 3 HDD's (2 of which are Raptors)

Would I need a 600 of 700 Watt PSU? considering the G80/r600 use about 450W on load - Seasonic M12 series is my PSU of choice ATM

:eek: een mede utrechter op xs :toast:

if you are spending that much on a new rig, i'd go with one of the 1k models (pp&c, ocz, others..?). with that you'll be having more then enough power for this and future rig's (for example, you can add an extra vid. card later for xfire/sli without having to worry about you're psu).

OT: Sick power consumption on the kentfield, close to 300w for a cpu..:shock: thanks for sharing this coolaler.
although i have to agree with hkpolice, both cpu's at the same vcore would make a better compare.
11-01-2006, 05:42 PM
Frank M

Quote:

Originally Posted by dinges

if you are spending that much on a new rig, i'd go with one of the 1k models (pp&c, ocz, others..?).

OT: Sick power consumption on the kentfield, close to 300w for a cpu..:shock: thanks for sharing this coolaler.

Yeah, but those others are nowhere near as silent ;)

As for #2: that was not just the cpu, but the entire pc.

Also, I don't think the next generation flagships will use
that much power. 450Ws under load just for a graphics
card sound like an awful lot to me... not to mention, how
to cool that beast? :eek:
11-01-2006, 08:23 PM
G H Z

Quote:

Originally Posted by HKPolice

Errrrr.... The dual core was running @ 1.35v and the Quad was 1.5v. This makes the results invalid.

He's showing us power consumption at identical Mhz. Even if they are not valid in the strictest sense they are pretty useful either way you look at it. It's possible to infer approximate numbers anyway and this also shows us that Kentsfield needs more juice than C2D for stability at similar Mhz.
11-01-2006, 08:53 PM
Revv23

Good test thanks coolaler, imo for 2x the amount of cores at a higher voltage 60-70% more power is not so much.
11-01-2006, 10:13 PM
OC_Windforce

wow~! good power :woot:
11-02-2006, 06:42 PM
computerman0416

Am I reading the temperatures right, 87 degrees celcius on the CPU. Thats roasting!! Whats the thermal specifications for the Kentsfields???
11-02-2006, 07:04 PM
Revv23

Quote:

Originally Posted by Revv23

Good test thanks coolaler, imo for 2x the amount of cores at a higher voltage 60-70% more power is not so much.

another thing to consider is that it will be rare for us to use all 4 cores.
11-02-2006, 07:05 PM
uOpt

Quote:

Originally Posted by computerman0416

Am I reading the temperatures right, 87 degrees celcius on the CPU. Thats roasting!! Whats the thermal specifications for the Kentsfields???

As with most Core2 temperature reports - it's bogus.
11-02-2006, 07:44 PM
775911

Whats the real temp then because personally I think one day heatsinks will come with little copper frying pans on top :toast:
11-02-2006, 08:20 PM
Revv23

i dunno, its hot though! :p:

IMO as long as its stable it doesnt matter
11-02-2006, 08:24 PM
nn_step

Quote:

Originally Posted by uOpt

BTW, here is the consumption of my 4x 875 Opteron for comparision:

Code:

zippy 700W OCZ 700W OCZ/fanctrl Zip/fanctrl soft off: 7 6 6 7 idle: 289 282 308 8x r@h: 398 416 8x mprime: 487 455 453 482

That kind of kills the performance per watt now doesn't it
11-02-2006, 08:30 PM
Ychocky

Very informative, thanks for the testing :)
11-03-2006, 07:21 AM
zerolise

Hey Coolaler, is it possible to keep both chips' Vcore the same in your set-up? That might be a better way to compare.
11-03-2006, 07:26 AM
uOpt

Quote:

Originally Posted by nn_step

That kind of kills the performance per watt now doesn't it

Why?

It think it's pretty low. Keep in mind it is 8 cores. So it mprimes at 56 watts per core using the OCZ unit. And that is 56 watts out of the A/C. Since the OCZ has 80% efficiency pretty much everywhere that means each core takes 45 watts, mpriming, and that is with 1 GB of RAM per core.
11-03-2006, 12:41 PM
JoeBar

Thanks for testing! :clap:
11-06-2006, 06:10 PM
coolaler

kentsfield 4200mhz(phase change)+ 8800GTX single(650/2100)
when ran 3D06,peak value 308 watts(all platform)

http://www.iamxtreme.net/coolaler/8800GTX/308W.JPG

3D06

http://www.iamxtreme.net/coolaler/88...ENTS4200_3.gif
11-06-2006, 06:19 PM
eva2000

nice coolaler.. what's the evap idle and load temps for QX6700 @4.2Ghz ? vcore ?
11-06-2006, 06:23 PM
shimmishim

first of all, nice results coolaler! :)

AT released an article a couple of days ago that does a performance per watt analysis with the new quad core vs. the current dual core

http://www.anandtech.com/cpuchipsets...oc.aspx?i=2866
11-06-2006, 07:21 PM
kraggy

Where can I get one of those cool watt meters that coolaler has? Looks like I'm gona need one for my Kentsfield setup too. Can you buy them here in the states?
11-06-2006, 07:48 PM
Revv23

nice 14k in 06 single card!!!

Thanks coolaler!
01-16-2007, 05:49 PM
Fixt00l

Thank you so much for the wonderful testing...It confirms that Kentsfield is way too early to appear for the masses,as it consumes a lot of power,runs H O T,which means OC cant be as good as the E6400:fact: ,and,of course,the price is...:stick:

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