Gentoo Archives: gentoo-user

From: "Евгений Пермяков" <permeakra@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] new machine : CPU : 22 nm vs 32 nm
Date: Thu, 26 Jul 2012 13:44:23
Message-Id: 50114977.9000001@gmail.com
In Reply to: [gentoo-user] new machine : CPU : 22 nm vs 32 nm by Philip Webb
1 On 07/26/2012 12:05 AM, Philip Webb wrote:
2 > I've listed what's available at the local store,
3 > which I trust to stock reliable items, tho' I wouldn't ask their advice.
4 >
5 > All the AMD's are 32 nm , while the Intel recommended by one commenter
6 > -- Core i5-3570 4-Core Socket LGA1155, 3.4 Ghz, 6MB L3 Cache, 22 nm --
7 > is 22 nm : it costs CAD 230 & they have 3 in stock,
8 > which suggests demand, but not the most popular ( 9 in stock).
9 >
10 > Isn't 22 nm going to be faster than 32 nm ?
11 >
12 > In the same price range, AMD offers Bulldozer X8 FX-8150 (125W)
13 > 8-Core Socket AM3+, 3.6 GHz, 8Mb Cache, 32 nm ( CAD 220 , 2 in stock).
14 >
15 > How do you compare cores vs nm ?
16 > How far is cache size important ( 6 vs 8 MB )?
17 >
18 > When I built my current machine 2007, the CPU cost CAD 213 ,
19 > so both look as if they're in the right ballpark.
20 >
21 If you're building new, performance-oriented box, you should take latest
22 intel with AVX because of AVX. As I recall, recent gcc has support for
23 avx, so some performance gain may be achieved.
24 If you want home box, you may be interested in AMD A8 and similar chips,
25 as they are reasonably fast and very chip
26
27 In any case, I'd put most of my money in 2-4 big 3Tb HDD's for media and
28 8+ Gb fast memory, as modern browsers eat memory like crazies and CPU is
29 usually fast enough. Decoding HDTV mkv's should occur on gpu block in
30 any case, so general performance for most uses is irrelevant, as it was
31 fast enough four yesrs earlier. Simply check, that you can offload HDTV
32 decoding to GPU in your config.

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Subject Author
Re: [gentoo-user] new machine : CPU : 22 nm vs 32 nm Michael Mol <mikemol@×××××.com>