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

[coolaler]

Is Kentsfield really a power hunger monster?!let's see the power consumption comparison between quad-core kentsfield and dual core core2 extreme!

platform
M/B ：ASUS P5B Deluxe
MEM ：TREEM DDRII 800 2GB Dual Channel
HDD ：Seagate 250g SATAII 16Mb Cache
VGA CARD ：MSI 7950GT
POWER: ACBel iPLUS 550W
OS ：WIN SEVER 2003
CPU COOLER：Tower 120
CPU ：Intel Core 2 Duo Conroe E6600 4mb cache
CPU ：Intel Core 2 Duo Kentsfield QX6600 8mb cache

ACBel iPLUS 550W



when dual core Vcore=1.35v,3.6G idle
From monitor reading,power consumption is 89W(stable)



monitor software reading
5v 5A
3.3v 5A
12v2 4A



dual core 3.6G running Dual SP2004
the highest power consumption reading is 176W(150W~165W up and down)



From monitor software reading
5v 5A increasing to 7A
3.3v 5A no changed
12v2 4A increasing to 10A

[coolaler]

Now let's see quad-cores
kensfield Vcore=1.50v,3.6G idle
From monitorreadings,power consumption is 103W(stable),it's more than dual core around 14W



From monitoring software
5v 6A
3.3v 4A
12v2 6A



Quad cores3.6Grunning the Dual SP2004,
The highest moment for power consumption is 257W(225W~241W jumping,even though it's only running 2 cores at the same time
; but it is still more than the dual core's 176W about 81W



from monitor reading software
5v 6A increased to 8A
3.3v 4A no chang
12v2 6A increased to 17A




now, I let the quad core running Quad SP2004
the highest moment for power consumption increased to 298W,(most of the time for jumping around )



from monitor reading software
5v 6A increased to 9A
3.3v 4A no changed
12v2 6A increased to 19A



Conclusion:At the same freq of 3.6GHZ
Quad core cpu power consumption is 1.16 times off dual core
for the highest moment of power consumption then will be the 1.69 times off dual core.

[NickS]

Pretty neat result coolaler. Pop in some crossfire action and measure power consumption

[eva2000]

nice coolaler... try also cpu load test that TAT has as it can provide a higher cpu /power load draw that stressprime can i.e. using Power-Mate power meter

System:

• Intel Core 2 Duo E6600 QPGE B1 Step 5 ES
• Scythe Infinity + 2x Thermaltake 120x25mm 81cfm push-pull
• Intel D975XBX Bad Axe rev304 1334 bios
• 128MB Gainward FX5200 PCI card
• 2x1GB Gskill PC6400PHU2 HZ Micron D9GMH 0629 batch
• 2x 320GB Seagate 7200.10 SATAII hdds
• Pioneer DVD-RW Burner
• 1.44MB FDD
• 600W OCZ EvoStream modular power supply

I tested 2 system clocks @2400Mhz at 1.275v bios (1.259v) and @3600Mhz at 1.425v bios (1.394v) with dual stressprime Orthos and TAT cpu load tests.

@2400Mhz at 1.275v bios (1.259v)
Windows Idle watts = 122.5W / (0.563A)
Windows Orthos Load watts = 164.8W
Windows TAT Load watts = 173.5W / (0.777A)

@3600Mhz at 1.425v bios (1.394v)
Windows Idle watts = 146.2W / (0.673A)
Windows Orthos Load watts = 227.4W
Windows TAT Load watts = 248W / (1.094A)

As suspected TAT's internal cpu load test heats up the cpu more than dual stressprime Orthos load testing and it shows in the power consumption readings

I'm using 128MB Gainward FX5200 PCI card video card so naturally system power consumption is much lower. I will test again with higher end video cards later

[nn_step]

almost double... thanks for the testing

[zabomb4163]

any way you could test an amd dual core setup?

[coolaler]

nice coolaler... try also cpu load test that TAT has as it can provide a higher cpu /power load draw that stressprime can i.e. using Power-Mate power meter

System:

• Intel Core 2 Duo E6600 QPGE B1 Step 5 ES
• Scythe Infinity + 2x Thermaltake 120x25mm 81cfm push-pull
• Intel D975XBX Bad Axe rev304 1334 bios
• 128MB Gainward FX5200 PCI card
• 2x1GB Gskill PC6400PHU2 HZ Micron D9GMH 0629 batch
• 2x 320GB Seagate 7200.10 SATAII hdds
• Pioneer DVD-RW Burner
• 1.44MB FDD
• 600W OCZ EvoStream modular power supply

I tested 2 system clocks @2400Mhz at 1.275v bios (1.259v) and @3600Mhz at 1.425v bios (1.394v) with dual stressprime Orthos and TAT cpu load tests.

@2400Mhz at 1.275v bios (1.259v)
Windows Idle watts = 122.5W / (0.563A)
Windows Orthos Load watts = 164.8W
Windows TAT Load watts = 173.5W / (0.777A)

@3600Mhz at 1.425v bios (1.394v)
Windows Idle watts = 146.2W / (0.673A)
Windows Orthos Load watts = 227.4W
Windows TAT Load watts = 248W / (1.094A)

As suspected TAT's internal cpu load test heats up the cpu more than dual stressprime Orthos load testing and it shows in the power consumption readings

I'm using 128MB Gainward FX5200 PCI card video card so naturally system power consumption is much lower. I will test again with higher end video cards later

hey!u r expert

[erwinz]

Thanks Coolaler

[HKPolice]

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

[eva2000]

hey!u r expert

thanks but I just have more money than sense just bought the Power-Mate power meter cost AUD$305 (US$230) and have been running around the house testing every appliance i can find with my new toy LOL

Would be interesting to see the QX6700 loads with TAT cpu test on 4 cores versus quad stressprime loads. If TAT increases power consumption by 10% over stressprime that would put +12v2 rail close to 21-22A maxing it out

[dinos22]

thanks but I just have more money than sense just bought the Power-Mate power meter cost AUD$305 (US$230) and have been running around the house testing every appliance i can find with my new toy LOL

Would be interesting to see the QX6700 loads with TAT cpu test on 4 cores versus quad stressprime loads. If TAT increases power consumption by 10% over stressprime that would put +12v2 rail close to 21-22A maxing it out

ROFL you jackass

watches George hook it up to microwave while making popcorn hahahah

[Tony]

thanks but I just have more money than sense just bought the Power-Mate power meter cost AUD$305 (US$230) and have been running around the house testing every appliance i can find with my new toy LOL

Would be interesting to see the QX6700 loads with TAT cpu test on 4 cores versus quad stressprime loads. If TAT increases power consumption by 10% over stressprime that would put +12v2 rail close to 21-22A maxing it out

hey George, I just have to get me one of those

[bachus_anonym]

Yeah, those meters are really useful and fun. I've had one one of those for about 2yrs now. Not as fancy as coolaler's and not as pretty as eva's, but it does what it's supposed to

That's my E6600 @ 4100MHz, 1.63v - during ORTHOS (almost 2hrs into LargeFFT as I'm playing with memory, as we speak). This power consumption includes: P5B DLX, 2GB DDR2, 1xHDD, 1xCDRW, 2x80mm fans, PCI videocard (7800GTX 256MB adds 30-40W, during ORTHOS since it's not in 3D mode).

Crappy pic, which reminds me I need to clean this thing a bit

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

Yeah, for the "apples-to-apples" comparison, coolaler would have to run his E6600 at 1.50v as well...

[Tony]

So i just hit the buy button, for UK customers i just got this http://www.energyoptimizersdirect.co...log/index.html

30pounds delivered, and will work in australia also with a converter for both in and out

[dinos22]

So i just hit the buy button, for UK customers i just got this http://www.energyoptimizersdirect.co...log/index.html

30pounds delivered, and will work in australia also with a converter for both in and out

lol hits buy now button

[The Asgard]

Nice results. Better than I expected.

Thanks for taking the time to perform the test

[lawrywild]

So i just hit the buy button, for UK customers i just got this http://www.energyoptimizersdirect.co...log/index.html

30pounds delivered, and will work in australia also with a converter for both in and out

20quid, oo that's pretty good

[DTU_XaVier]

Great article Coolaler... Goes to show that the nice, powerful (no pun intended) PSU will go a long way without needing upgrade, whereas if you buy inferior (lower-wattage) PSUs, you'll be changing them in no time
Again, great read, now show us som 3dmark 06 action

Best Regards

[rozzyroz]

almost double... thanks for the testing

actually, coolaler said that it was 16% more at idle and 69% more under load.

Conclusion:At the same freq of 3.6GHZ
Quad core cpu power consumption is 1.16 times off dual core
for the highest moment of power consumption then will be the 1.69 times off dual core.

[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

[thunderstruck!]

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

You will be taxing your whole PSU at stock. If you want to overclock or even upgrade down the road, that PSU will be worthless.

[mach82]

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

E6400 3GHz+8800GTX - a 470W 30A 12V PSU works absoutely fine (1HDD, 1DVD-RW, 2GB RAM). So it's not so bad when it comes to energy consumption by the newest G80.

[K404]

considering the G80/r600 use about 450W on load

That for SLI?

[irev210]

I will post kentfield w/ 1.7vcore under load shortly

you will be amused. lol

[uOpt]

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

                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