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Date:      Mon, 14 May 2007 14:59:50 -0500
From:      Eric Anderson <anderson@freebsd.org>
To:        Kevin Oberman <oberman@es.net>
Cc:        Tom Evans <tevans.uk@googlemail.com>, Abdullah Ibn Hamad Al-Marri <almarrie@gmail.com>, Charles Trevor <ct.lists@qgsltd.co.uk>, freebsd-mobile@freebsd.org
Subject:   Re: Recommended laptops for FreeBSD 6.x ...
Message-ID:  <4648BFB6.4090003@freebsd.org>
In-Reply-To: <20070514171940.973FA45042@ptavv.es.net>
References:  <20070514171940.973FA45042@ptavv.es.net>

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On 05/14/07 12:19, Kevin Oberman wrote:
>> From: Tom Evans <tevans.uk@googlemail.com>
>> Date: Mon, 14 May 2007 17:48:09 +0100
>> Sender: owner-freebsd-mobile@freebsd.org
>>
>>
>> --=-jdMU/vAkVlVQBOC0m45e
>> Content-Type: text/plain
>> Content-Transfer-Encoding: quoted-printable
>>
>> On Mon, 2007-05-14 at 10:18 -0500, Eric Anderson wrote:
>>> On 05/14/07 10:07, Tom Evans wrote:
>>>> On Mon, 2007-05-14 at 11:17 +0300, Abdullah Ibn Hamad Al-Marri wrote:
>>>>> That's alright, but I don't think we are going to look for single core
>>>>> cpu anymore these days, maybe just for tabletpc to save power?
>>>>>
>>>> =20
>>>> If your primary concern is as a road warrior, then battery life might
>>>> appeal to you more than a 40% reduction in 'make buildworld'.
>>>> =20
>>>> Personally I love my dual core lappy, but I use battery power about 10%
>>>> of the time, and always under 1 hour.
>>> =20
>>> =20
>>> Note that a Core 2 Duo processor may use noticeably less power than a=20
>>> single core <something else>.
>>> =20
>>> =20
>>> Eric
>>> =20
>> I find it still uses more juice with both cores enabled than just one -
>> in which case, surely a Core Solo might be a better bet. I'm not sure on
>> availability of Core 2 Duo ULV processors in off-the-shelf laptops.
> 
> For the record, Pentium4 based systems use a LOT more power than either
> Pentium-M (aka Centrino). I have not carefully evaluated the power
> consumption of Core Duo systems, but they are higher then similar
> Pentium-M systems. P4 systems also run much hotter than P-M or Core Duo
> systems.

Note that I said 'Core 2' not 'Core'.

Eric




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