Here is the link to Tom's Hardware CPU Performance Charts to give you an 
idea how they stack up running different apps. HTH
Mark
http://www23.tomshardware.com/cpu.html

----- Original Message ----- 
From: "J Ottie" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, July 05, 2007 2:10 PM
Subject: [PCBUILD] Intel Pentium D & Intel Core 2 Duo Performance


> Good Afternoon All,
>
> Does anyone have any hands-on experience with or expert knowledge about 
> the
> performance of Intel's Pentium D 945 (or Pentium D 935) processor compared
> to Intel's recently introduced E4400 Core 2 Duo processor?
>
> In the Dell machine I wish to order, both CPUs run with a 800 MHz FSB and
> use 667 MHz DDR2 memory. Also both processors are within a few dollars of
> each other in Dell's pricing structure, but curiously the older technology
> Pentium D 945 which has 2x2MB L2 cache and supports VT (Intel's
> Virtualization Technology) is priced slightly higer than the just 
> introduced
> Core 2 Duo E4400 which has1x2MB shared L2 cache and lacks VT support.
>
> Does this mean that the Pentium D 945 is the better performing processor, 
> or
> does it simply mean that D 945 is more expensive to manufacture than the
> newer Core 2 Duo E4400? Unfortunately Dell doesn't include either 
> processor
> in their current CPU performance chart, so one is left guessing which CPU
> offers the better overall performance.
>
> See:
> http://www.dell.com/content/topics/topic.aspx/global/products/dimen/topics/en/dhs_cpu_landing?c=us&cs=19&l=en&s=dhs.
>
> While reseaching this topic I learned that testing results posted at 
> various
> online hardware forums seem to indicate the E4400 has the edge over the D
> 945 in most benchmark categories, sometimes significantly so.
>
> Surprisingly, I've also read in a couple highly technical, genuinely 
> geekish
> forums that all Intel Core 2 Duo CPUs have many and serious design and/or
> coding flaws that Intel has yet to address and fix. These reports advised
> against buying any machine using a Core 2 Duo processor until Intel's 
> fixes
> the problems in revised and updated versions of these CPUs which are 
> likely,
> or so concluded the authors of teh reports I read, to be released in about 
> a
> year's time.
>
> Bottom line is: which processor should I select?
>
> Thanks in advance to one and all for landing me a hand in making the 
> proper
> choice.  I remain,
>
> Yours with Kind Regards,
> Jeffrey Ottie
>
>
> eom
>
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