mersenneforum.org Should i go with i7 920 or Q6600?
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 2009-04-28, 20:34 #12 Brucifer     Dec 2005 313 Posts I opted for more Q8400 and Q9400 systems rather than picking up a hotrod i7. Price is a definite factor for me. I go for the 2 lessor quads than the one i7 as I try and keep with the view of not putting too many eggs in one basket as it takes time to get those eggs replaced when they break. :-)
 2009-04-28, 21:00 #13 PCZ     Jun 2006 Chertsey Surrey UK 2×179 Posts In the UK the i7 920 is cheaper than most of the 45nm quads. Motherboards are a little bit more pricey though and you do have to get DDR3 ram. Last fiddled with by PCZ on 2009-04-28 at 21:00
2009-04-28, 23:51   #14
Batalov

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Mar 2008
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214328 Posts

Quote:
 Originally Posted by IronBits It also overclocks very easily to 3.5GHz, effectively producing about the same amount of work of 2 Q6600 quad cores.
Let's not compare a running horse to a standing bull.
Q6600 OCs very decently, too, so factor in its stable performance at 3.2GHz (and no prime95 errors in ~100 LLs turned in).
But surely, some 9xxx or 8xxx are a good choice, too. Consider all params together and in moderation!

Last fiddled with by Batalov on 2009-04-28 at 23:53 Reason: HGz are not really units, are they?

 2009-04-29, 00:31 #15 cipher     Feb 2007 211 Posts How about Q8200 instead of Q6600? i can get a Q8200 system for $400-450 and Q6600 will cost me approx$100-150 more. Will Q8200 perform @ the same level as Q6600? given it has approx 200million less transistor count than Q6600. Thanks cipher
 2009-04-29, 01:34 #16 PCZ     Jun 2006 Chertsey Surrey UK 35810 Posts You have to be careful not to get a chip with too small a cache. The larger N's crunch very slowly on chips with small caches. For example i have a couple of dual cores here currently doing work in the 700-800K range. An e4400 with 2Mb cache takes 750 secs An e2200 with 1Mb cache takes 1500 secs both of them are clocked the same to around 2.6Ghz

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