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| Hardware Components and Aftermarket Upgrades Discuss Processors, RAM, Hard Drives and other basic notebook components here. Includes upgrade questions. |
02-05-2008, 02:32 PM
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#1
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Notebook Enthusiast
Join Date: Dec 2007
Posts: 27
Rep Power: 6 
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Celeron M vs. Core 2 Duo
From a power consumption point of view, which stands to gobble less power, a Celeron M (540) or a low-end Core 2 Duo (T5270)? Supposing the Celeron has lesser processing power, does the latter have better power management?
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02-05-2008, 02:44 PM
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#2
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Evil Cutting Blade
Join Date: Jun 2007
Location: Online
Posts: 4,864
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Re: Celeron M vs. Core 2 Duo
The Celeron has a TDP of 30W and the C2D has a TDP of 35W. So at full speed, the C2D will consume more power. However, the Celeron doesn't support SpeedStep so it can't downclock to conserve power. Overall, I think the Celeron will consume more power than the C2D.
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02-05-2008, 02:46 PM
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#3
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Notebook Evangelist
Join Date: Feb 2008
Location: Right behind you
Posts: 485
Rep Power: 6 
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Re: Celeron M vs. Core 2 Duo
I'd go with the Core 2 Duo. The Celeron M has it's speedstep disabled so it'll always run at maximum speed and not reduce it's power usage.
The Core 2 Duo can vary it's speed. At any rate I'd be willing to trade in some battery life to get a little more speed out of my laptop, even if it is for office work. I have a XPS M1210 configured with an T5500 and it gets about 4,5 to 5 hours of batterylife with medium usage.
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02-05-2008, 02:48 PM
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#4
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Notebook Evangelist
Join Date: Nov 2007
Location: United Kingdom
Posts: 637
Rep Power: 8
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Re: Celeron M vs. Core 2 Duo
I've got a Celeron M 540 now and I'm going to try and upgrade mine to a Core 2 Duo T5250 when it arrives tomorrow hopefully. That's telling you to go for the Core 2 Duo!  |
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02-05-2008, 02:56 PM
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#5
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Notebook Evangelist
Join Date: Feb 2008
Location: Right behind you
Posts: 485
Rep Power: 6
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Re: Celeron M vs. Core 2 Duo
Personally I wouldn't ever really consider a Celeron. I've worked with Celeron machines on several occassions and whenever you start running a lot of apps they choke on it.
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02-05-2008, 03:00 PM
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#6
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Notebook Evangelist
Join Date: Nov 2007
Location: United Kingdom
Posts: 637
Rep Power: 8
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Re: Celeron M vs. Core 2 Duo
The Celeron M doesn't...it's just a Core 2 Duo is a big leap in performance lol
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02-05-2008, 03:09 PM
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#7
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Notebook Evangelist
Join Date: Feb 2008
Location: Right behind you
Posts: 485
Rep Power: 6
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Re: Celeron M vs. Core 2 Duo
The lack of L2 cache does hurt the Celeron. It's fine for basic stuff, but its really worth it to go with a cheap Core 2 Duo if you can.
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02-05-2008, 03:11 PM
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#8
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Notebook Guru
Join Date: Jan 2008
Location: Texas
Posts: 61
Rep Power: 6
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Re: Celeron M vs. Core 2 Duo
I'd say it depends on wether or not it had Centrino Technology installed along side of it.
If you've got a Celeron M Centrino, and a regular Core 2 duo, then Yeah, I'd say the Celeron M will use less power.
But at the end of the day, Which Processor is going to be useful for how long?
Most Core 2 Duo's you get today have Centrino Technology installed, and as one user said, It's got Dynamic Underclocking capability, Which allows it to automatically update it's clock speed for performance or battery life.
Core 2 Duo All the way...
(Plus, Core 2 Duo's, I -think- In general are 64 bit ready, which is always good considering I suspect within the next few years, the push to 64 bit will be huge)
__________________
ASUS F3SV-X4|AEVA| 15.4 WXGA(1280x800) :: Intel Core 2 Duo@2.2 :: 160Gig HDD :: Vista Premium :: 2Gig G.Skill DDR2 :: Nvidia 8600m GS(v169.07) :: Bluetooth :: 1.3 Webcam ::
Acer Aspire 5610z|GRAVI| 15.4 XGA(1280x800) :: Intel Dual-Core 1.6 :: 120Gig HDD :: Vista Premium :: 1gig DD2 :: GMA 950 :: 1.3 Webcam
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02-05-2008, 06:19 PM
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#9
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NBR Reviewer
Join Date: Jul 2006
Location: somewhere pink and fluffy
Posts: 2,727
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Re: Celeron M vs. Core 2 Duo
The Core 2 Duo will use less power in general usage.
__________________
HP DV6 "Badger" | 15.6" 768p | PDC T4200 | ATi HD4530 512MB GDDR3 | 4GB DDR2-800 | 250GB Seagate 5400.5 | Lightscribe DVD-RW | Vista Enterprise x64
HP 2510p "Possum" | 12.1" Illumi-lite WXGA | C2D U7600 | Intel X3100 | 2GB DDR2-667 | 80GB 1.8" HDD | DVD-RW | Vista Business x86
Also:
TOSHIBA Satellite Pro L100 | TOSHIBA Satellite M50 | TOSHIBA Satellite A30
Reviews: Toshiba Satellite Pro L100 | Zepto 6224W | Packard Bell MZ-36 | Zepto 6625WD
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02-05-2008, 10:27 PM
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#10
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Notebook Consultant
Join Date: May 2007
Posts: 150
Rep Power: 7
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Re: Celeron M vs. Core 2 Duo
Dont forget about how hot your machine will run with the Celeron, hence the fan eating power up..
Since I took out my Celeron 1.6ghz and installed my Core 2 Duo 1.73ghz T5300, my battery gained 50 minutes running time, thats at full performance Windows power setting and my fan barely kicks on. 
__________________
Acer Aspire 3680-2633
Duo-Core 2 T5300 1.73Ghz Upgrade
i943GML Intel Chipset
"Eat your hearts out!" 
2gb pc-5300 RAM
100GB 7200 RPM Hitachi 7k200 HD
NEW as of 4-16-09:
Acer Aspire 5315-2698
200GB 7200rpm Hitachi 7k200 HD
3GB RAM
Core 2 Duo T7300 @ 2.0Ghz, 4mb cache
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