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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

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Lepl parser for Python.

Colorless Green.

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Data access via web services.

Cache rewrite.

Extending OpenSSH.

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© 2006-2013 Andrew Cooke (site) / post authors (content).

Comparison of Dual Core E4700 and E6400

From: "andrew cooke" <andrew@...>

Date: Tue, 23 Jun 2009 11:48:20 -0400 (CLT)

I have an E6400 overclocked to 3.36GHz (fsb 4*420).  It's an old Dual Core
with a small (1Mb?) L2 cache, running on a new mobo (Asus P5) with DDR
6400 memory.

I just built (over the weekend) a new machine using an E7400, no overclock
(2.8GHz), with a 266 FSB and DDR5300 memory on a cheaper mobo (ECS, P43). 
This is a fairly new (45nm) chip.

From the numbers you might expect the E7400 to be around 20% slower (just
comparing clock speeds - everything else on the first machine is "better",
which should increase the difference).

In fact, using primenet as a benchmark, it's only 10% slower.  So either
the L2 cache, or improved architecture, or both, are giving it at least a
10% edge over the older chip (in relative terms, if you follow me...)

Andrew

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