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Intel Dual Core Performance Preview Part I: First Encounter
Intel Dual Core Performance Preview Part I: First Encounter
Date: April 4th, 2005
Topic: CPU & Chipset
Manufacturer: Intel
Author: Anand Lal Shimpi
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The Real Test - AnandTech's Multitasking Scenarios

Shortly after receiving the dual core system from Intel, I posted a question in my blog asking AnandTech readers to respond with how they multitask.  I kept the question pretty open-ended, just wanting to get a feel for all the different types of multitasking that this sample of AnandTech readers did on a daily basis.  I then took the data and did my best to, in the limited time that I had, model some real world multitasking benchmarks based on the responses.  The results are three real world, multitasking benchmarks with the promise of more to come. 

The biggest commonality between responses was that AnandTech reader systems, much like my own, are loaded with applications running in the background.  So, the first thing that I did to put together our multitasking testbed was to put a ton of applications on it, the type that we all use. I came up with the following list:

Daemon Tools
Norton AntiVirus 2004 (with latest updates)
Firefox 1.02
DVD Shrink 3.2
Microsoft AntiSpyware Beta 1.0
Newsleecher 2.0
Visual Studio .NET 2003
Macromedia Flash Player 7
Adobe Photoshop CS
Microsoft Office 2003
3ds max 7
iTunes 4.7.1
Trillian 3.1
DivX 5.2.1
AutoGK 1.60
Norton Ghost 2003
Adobe Reader 7

What's important about that list is that a handful of those programs were running in the background at all times, primarily Microsoft's AntiSpyware Beta and Norton AntiVirus 2004.  Both the AntiSpyware Beta and NAV 2004 were running with their real time protection modes enabled, to make things even more real world. 

With my system fully configured, I did what anyone else would do with a brand new system - I used it.  I used it as an actual system doing real world everyday tasks and made notes of my impressions, then came the interesting part - I swapped out processors for a single core non-HT enabled Pentium 4 and started making notes of differences.  Armed with the single core chip, I went to task on creating benchmarks based on some of the tasks that AnandTech readers did on a regular basis (not too surprising, I use my system in a very similar way to most AT readers).  So let's get to the tests...

Multitasking Scenario 1: DVD Shrink   Next Page

 
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141 Comments - Last by haveblue128, 1679 days ago
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No Subject by aurellie1, 1772 days ago
Nice performance!
Not a single word in the review about temperatures though...

Reply
No Subject by msva124, 1772 days ago
This looks promising, I wonder if AMD might eventually cave and implement hyper-threading in their processors, in addition to dual core. Or is that not part of the cross licensing agreeement?

Reply
No Subject by segagenesis, 1772 days ago
One site mentioned 125W power consumption. Ow.

Well, its a start... but I want to see AMDs offering first.

Reply
No Subject by LeadFrog, 1772 days ago
I like the theory of if it can't get any faster lets just combine a few.

SLI, RAID, and Dual Core CPU's.

Reply
No Subject by johnsonx, 1772 days ago
I know it's nearly double the number of benchmarks to run, but it would have been instructive to see both Pentium processors benchmarked without HT as well. Testing the dual-core pentium EE without HT would of course mimic a 3.2Ghz Pentium D, and testing the single core P4 without HT would give us a baseline single-core, single execution thread reference.

Finally, it might also be instructive to benchmark current P4 at 3.2Ghz, again both with and without HT.

Easy for me to say, I know, since I'm not the one who has to do all the benches....


Reply
No Subject by vaystrem, 1772 days ago
"2) Open iTunes and start playing the latest album of avid AnandTech reader 50 Cent on repeat all."

? Really?

Reply
No Subject by johnsonx, 1772 days ago
ok, sorry... I posted my comment before reading the encoding benchmarks, where I see you did exactly what I suggested. My bad.


Reply
No Subject by knitecrow, 1772 days ago
yo dog, where the temperature at?





but seriously, in addition to the usual suspects, I think anandtech should have compared pentium D to xenon 3.2ghz just to see the performance difference.



Reply
No Subject by Googer, 1772 days ago
In Soviet Russia you post all you bad jokes Here:
http://forums.anandtech.com/messageview.aspx?catid=38&threadid=1556900

Reply
No Subject by Klober, 1772 days ago
Two separate points here:

First, I suppose dual-core may not improve single threaded application performance much over a single-core CPU with HT, but shouldn't it increase performance over a single-core CPU w/o HT? I would think it would allow the OS to run on one core while the application runs on the other core, which in theory should increase performance some. Just a thought, as I'm no expert on scheduling and the resources the OS actively requires.

Second point, a small simple application that may be useful in benchmarking, particularly in multitasking benchmarks, might be Macro Scheduler by MJT Net. It takes very little in the way of resources, and is very easy to program for starting applications, switching between them, taking screenshots, clicking on options and even typing whatever you'd like wherever you'd like. I think it could be a great base for switching between applications and starting processes inside those applications, all in a very repeatable manner. Timing can be down to the 1/10,000th of a second if need be, and using a scheduler with minimal resource impact would take the human element out of the benchmarking. Maybe you've already looked into this, or something similar, but it's just a thought that may make certain benchmarking situations easier for all of you that bring us these great (p)reviews.

Reply
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