Date: Tue, 14 Jun 2005 13:07:46 -0700 From: "David O'Brien" <obrien@FreeBSD.ORG> To: freebsd-amd64@FreeBSD.ORG Subject: Re: Athlon64 board with ECC support? Message-ID: <20050614200746.GA14998@dragon.NUXI.org> In-Reply-To: <200506141610.j5EGAC8A016264@lurza.secnetix.de> References: <20050613192009.GA4323@dragon.NUXI.org> <200506141610.j5EGAC8A016264@lurza.secnetix.de>
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On Tue, Jun 14, 2005 at 06:10:12PM +0200, Oliver Fromme wrote: > David O'Brien <obrien@freebsd.org> wrote: > > On Mon, Jun 13, 2005 at 06:16:13PM +0200, Oliver Fromme wrote: > > > I'm currently evaluating possibilities to upgrade to a > > > 64bit system (preferably AMD). I would like to get a > > > single-processor Athlon64 system, no Opteron, because of > > > heat, noise and power consumption (and price). > > > > There is no difference between Athlon64 and Opteron with respect to heat, > > noise and power consumption. There is yes a price difference. > > That's interesting. I've seen several Athlon64 and Opteron > systems, and it was my impression that the latter were all > noisier and ran "hotter". But my impression could be wrong. The thermal requirements of standard Opteron and Athlon64 are the same. There are low-power Opterons (30W & 55W), which aren't available in the Athlon64 line. > It's also interesting to note that there are now plenty of > Athlon64-based notebooks, but I haven't seen any Opteron > notebook so far, WHY would you want an Opteron notebook? You certainly don't have the room in a notebook to add all kind of I/O devices to utilize the 3 HyperTransport links (vs. the 1 of Athlon64). I don't know of anyone that wants to track down registered(buffered) SODIMM's either. I don't think most notebook design houses could do a proper 2P notebook design. Thus what is the advantage of Opteron over Athlon64 in the notebook arena? > which lead me to believe that the Athlon64 > has some power-saving features which the Opteron lacks. > Does the Opteron have "PowerNow" or "Cool'n'Quiet"? Yes, Opteron definitely has "PowerNow!". You need a rev.CG processor and BIOS that supports it. -- -- David (obrien@FreeBSD.org)
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