From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id BEB7C13800E for ; Thu, 26 Jul 2012 14:49:45 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 80EAAE059B; Thu, 26 Jul 2012 14:49:24 +0000 (UTC) Received: from mail-bk0-f53.google.com (mail-bk0-f53.google.com [209.85.214.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 0A083E019D for ; Thu, 26 Jul 2012 14:48:07 +0000 (UTC) Received: by bkwj4 with SMTP id j4so1286898bkw.40 for ; Thu, 26 Jul 2012 07:48:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=Ofa3G+gGp06AbLR5PsdVJkNl1Tsi+v9Y0q+IPRBrKeM=; b=g7eNhNzgXj7iBV3Gs7I0OC1R7a8sRKfWfkxhuqDiyAlNahC0FGIiXoSkpRYS+EvxB9 fsdd+b8vhWBsqmhpWmyYEK6yMJa+VaHmvyOuz+ex985/D/JGNReBjtaK6RAv271MBGvQ 4sMRgVFBQKQIu/R/Dc9Jg6lDvweKxA4svFJ70nwlwMvF1yBc8szsmdzFOPS1xSlxzdE4 GBYGFUBtRLdZkhT9TpIt9pNVVQ356meWP6I77j7M1fSPCl8bzIDkm2MjQKJPNt/LKxq1 4Mb70vlYuuHtBrlHmT7xiHfWjH2q9Ia1hlxLMTBOXh8RCtKUDwJQFBqEmDkUFl3fbcl7 5sag== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.204.129.4 with SMTP id m4mr13618328bks.55.1343314086795; Thu, 26 Jul 2012 07:48:06 -0700 (PDT) Received: by 10.204.10.12 with HTTP; Thu, 26 Jul 2012 07:48:06 -0700 (PDT) In-Reply-To: <501151A7.8010803@gmail.com> References: <20120725200529.GF2965@ca.inter.net> <50114977.9000001@gmail.com> <501151A7.8010803@gmail.com> Date: Thu, 26 Jul 2012 10:48:06 -0400 Message-ID: Subject: Re: [gentoo-user] new machine : CPU : 22 nm vs 32 nm From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 063b98eb-0ca7-4aa9-8983-307b6d5291ba X-Archives-Hash: 1e54f7720f92462758044cbc772f9fca On Thu, Jul 26, 2012 at 10:18 AM, =D0=95=D0=B2=D0=B3=D0=B5=D0=BD=D0=B8=D0= =B9 =D0=9F=D0=B5=D1=80=D0=BC=D1=8F=D0=BA=D0=BE=D0=B2 = wrote: > On 07/26/2012 05:50 PM, Michael Mol wrote: >> >> On Thu, Jul 26, 2012 at 9:43 AM, =D0=95=D0=B2=D0=B3=D0=B5=D0=BD=D0=B8=D0= =B9 =D0=9F=D0=B5=D1=80=D0=BC=D1=8F=D0=BA=D0=BE=D0=B2 >> wrote: >>> >>> On 07/26/2012 12:05 AM, Philip Webb wrote: >>>> >>>> I've listed what's available at the local store, >>>> which I trust to stock reliable items, tho' I wouldn't ask their advic= e. >>>> >>>> All the AMD's are 32 nm , while the Intel recommended by one commente= r >>>> -- Core i5-3570 4-Core Socket LGA1155, 3.4 Ghz, 6MB L3 Cache, 22 nm -- >>>> is 22 nm : it costs CAD 230 & they have 3 in stock, >>>> which suggests demand, but not the most popular ( 9 in stock). >>>> >>>> Isn't 22 nm going to be faster than 32 nm ? >>>> >>>> In the same price range, AMD offers Bulldozer X8 FX-8150 (125W) >>>> 8-Core Socket AM3+, 3.6 GHz, 8Mb Cache, 32 nm ( CAD 220 , 2 in >>>> stock). >>>> >>>> How do you compare cores vs nm ? >>>> How far is cache size important ( 6 vs 8 MB )? >>>> >>>> When I built my current machine 2007, the CPU cost CAD 213 , >>>> so both look as if they're in the right ballpark. >>>> >>> If you're building new, performance-oriented box, you should take lates= t >>> intel with AVX because of AVX. As I recall, recent gcc has support for >>> avx, >>> so some performance gain may be achieved. >>> If you want home box, you may be interested in AMD A8 and similar chips= , >>> as >>> they are reasonably fast and very chip >> >> AMD parts have had AVX since the Bulldozer core release in Q3 2011. > > Are they already available in reasonable numbers on market? http://www.cpubenchmark.net/cpu.php?cpu=3DAMD+FX-8120+Eight-Core At $150, fitting into existing Socket AM3+ boards, that looks like the best part for my money right now. >>> In any case, I'd put most of my money in 2-4 big 3Tb HDD's for media an= d >>> 8+ >>> Gb fast memory, as modern browsers eat memory like crazies and CPU is >>> usually fast enough. Decoding HDTV mkv's should occur on gpu block in a= ny >>> case, so general performance for most uses is irrelevant, as it was fas= t >>> enough four yesrs earlier. Simply check, that you can offload HDTV >>> decoding >>> to GPU in your config. >> >> Here, you're talking about either VDPAU or VAAAPI support. VDPAU is >> only offered by nVidia cards, and even then you need to run the >> proprietary driver. VAAPI is supported by Intel graphics and ATI's >> proprietary driver. > > I do not see any problems with this. A blob in system is not best practic= e, > of course, but it does not need any configuration and is not a performanc= e > bottle-neck, so there is no reason to care. I only bring it up because some people do care. I'm running fglrx at home right now. When I run nVdia, I run the nVidia drivers. In part because I like accelerated video decoding (which a Geforce 210 does wonderfully), in part because the nv, nouveau and radeon drivers historically worked very poorly for me in 2D performance when faced with multiple 1080p displays. They're always getting better, of course. > > I personally would prefer AMD A8 if I can offload decoding to GPU unit th= ere > (not sure if I can, so won't change my box till next summer), but discret= e > video card will not be the most costly part in good non-gaming box, hard > drives will, so again, what the matter? Computer usage breaks down into more than gaming and non-gaming. My "non-gaming" boxes at home tend to have their CPU, RAM or NICs as their most expensive components, because that's where I need them to perform better. --=20 :wq