From owner-freebsd-questions@FreeBSD.ORG Mon Apr 4 17:00:44 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DCE7D16A4CE for ; Mon, 4 Apr 2005 17:00:44 +0000 (GMT) Received: from mx2.mail.ru (mx2.mail.ru [194.67.23.122]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6387E43D46 for ; Mon, 4 Apr 2005 17:00:44 +0000 (GMT) (envelope-from infofarmer@mail.ru) Received: from [83.237.13.44] (port=4804 helo=[172.17.0.69]) by mx2.mail.ru with asmtp id 1DIUwN-0009Ld-00; Mon, 04 Apr 2005 21:00:43 +0400 Message-ID: <425172C1.7000009@mail.ru> Date: Mon, 04 Apr 2005 21:00:49 +0400 From: "Andrew P." User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Olaf van der Spek References: <48a5f32a05040405393061ec68@mail.gmail.com> <42514210.2010509@mail.ru><425167A6.1070700@mail.ru> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: questions@freebsd.org Subject: Re: Will Sempron 754 run with FreeBSD i386? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: infofarmer@mail.ru List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Apr 2005 17:00:45 -0000 Olaf van der Spek wrote: > On Apr 4, 2005 6:13 PM, Andrew P. wrote: > >>>Are you sure? >>>The s754 versions have an on die memory controller and a K8 core >>>(although with disabled 64-bit mode), which should make it >>>significantly faster then the K7 based Sempron on sA. >> >>Yeah, it appears I got a wrong idea from some poor >>article. As a matter of fact, Sempron/sA is based >>on Barton core, while Sempron/s754 is a K8 sister. >>The latter has an on-chip memory controller and >>SSE2 instruction set supported. They are pretty >>same in all other aspects though, and I still >>suppose the perfomance margin is negligible. > > > Why do you expect so much performance to be lost compared to the Athlon 64 s754? > The Athlon 64 s754 is significantly faster than the Athlon XP. I haven't seen any tests, yet I've seen Sempron/Socket-A in action and it was impressive. I also have Athlon 64 and Athlon XP pc's at home and I don't think K8 is so superior. In non-sse2 non-very-memory-intensive applications it performs better, but not "turbo-charged". Besides, AMD is pricing Socket-A Semprons even higher than s754 versions. Considering the fact that s754 is clocked lower than sA of the same PR, it can be hard to determine the speed difference. Anyway, I really think there's nothing for us to argue about :) Gareth is staying with s754 and we should be glad for him :) Very best wishes, Andrew P.