Intel Dual Core Performance Preview Part I: First Encounter
by Anand Lal Shimpi on April 4, 2005 2:44 PM EST- Posted in
- CPUs
Encoding Performance
These new dual core CPUs are supposed to usher in a new era of media rich application usage models. They are supposed to enable us to do things that we were never able to do before. Let's find out if that's true or not...
First, we start off with iTunes to test MP3 encoding performance. We took a 12MB .wav file of our own creation and encoded it to a 192kbps MP3 file, measuring how long it took to encode the file.
Once again, we see that the Pentium Extreme Edition 840 is able to offer equal performance to the 3.73EE at 29 seconds. What's truly interesting is that the Pentium D running at 3.2GHz actually offers better performance than the Extreme Edition. We can only assume that 4 threads in iTunes begins to reduce performance, with 2 concurrent threads being the optimal point.
But once again, the performance gains aren't impressive. So far, dual core isn't looking too good.
DivX Encoding Performance
Our DivX tests from previous CPU reviews have shown a pretty sizeable improvement due to Hyper Threading, so we expected a similarly impressive gain due to dual core:
...and we were not disappointed. The Pentium Extreme Edition 840 offered more than a 20% increase in performance in our DivX encoding task when compared to the 3.73GHz single core P4 Extreme Edition.
We also see another example of four threads offering no performance improvement over being able to execute two concurrently, as the Pentium D running at 3.2GHz offers equal performance to the 840.
XviD Encoding Performance
The XviD tests show no real improvement due to dual core, but also don't seem to show much of an improvement due to Hyper Threading either. This just goes to show you that not all encoding tasks will show tremendous benefits.
Windows Media Video 9 Encoding Performance
Once again, we see extremely strong performance from the new dual core chips, offering around a 30% performance improvement at 85% of the clock speed of the current king of the hill.
So, overall encoding performance is pretty strong on the dual core chips from Intel. Let's have a look at one more multi-threaded application before we get to the more interesting tests.
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michaelpatrick33 - Monday, April 4, 2005 - link
AMD's dualcore will use less power and produce less heat apparently and last I checked an FX-51 (2200) out performs the Intel 3200 in a single core configuration so it will be interesting what a dualcore AMD at 2200 or 2400 will do compared to the Pentium 4 3200 dualcore. AMD is going after the busines market where the money and the desire for dual core will be greatest. Why isn't Intel going for that market? Interesting question.CrazyCurl - Monday, April 4, 2005 - link
good review! cant wait to see more info. I am particularly interested in heat dissapation as well and would be nice to see the new unreal engine that supports multithreading benchmarks but that would be be a ways off id assume.Is the 955X gonna support pressler? is that why it has 1066 fsb and ddr-667?
dragonflycms - Monday, April 4, 2005 - link
How about a web developer test I constantly run these programsDragonflycms 9.1.2
Apache 1.3.9
MySql 4.1
PHP 4.0
Photoshop 7.0
Flash MX 2004
Fireworks MX 2004
Dreamweaver MX 2004
Firefox
Hydra IRC
Messenger
Yahoo Messenger
The web server and mysql drastically effect the runing of the multimedia applications. This would be a great multitask test.
cHodAXUK - Monday, April 4, 2005 - link
#34 You are absolutly right there Anand, to this day I have still not had a single CPU system as responsive as my old dual O/C Celeron 550 machine. I ran it along side a P3/800 for a long time and always much prefered the Celeron box for general day to day tasks, hell my AMD 3500 feels damn fast most of the time but when I try multitask a bit too much it just takes forever to even get menus to pop down. Dual core is definately the way to go for the future, when the apps/games start to catch up with the technology everyone will wonder how they ever did without a multi core/cpu system.stephenbrooks - Monday, April 4, 2005 - link
If it's any help to y'all asking about thermals, [H]ard|OCP says:"Our Intel 840 will have an operating voltage between 1.2V and 1.4V and have a Thermal Power Design of 130W"
knitecrow - Monday, April 4, 2005 - link
thanks Anand... it is the power consumption and power dissipation profiles that I really want to see.Anand Lal Shimpi - Monday, April 4, 2005 - link
oh and power consumption is coming... :)Anand Lal Shimpi - Monday, April 4, 2005 - link
Hans MaulwurfThese usage scenarios were described by AnandTech readers in my recent request for benchmarks, they weren't anything prescribed by any hardware manufacturers.
Ask anyone who has used a dual processor system, things are just smoother. The reason we've never recommended dual processors systems in the past is mostly because of price. In less than 3 months you should be able to, in theory, purchase a dual core processor for as little as $240. Not since the days of the dual Celeron 300A systems has dual processing been that affordable.
Take care,
Anand
Slaimus - Monday, April 4, 2005 - link
The best thing about dual core is that you do not need HT aware OS's anymore. It sucks when you want to run Win2000 with HT and getting slower speeds.Shlong - Monday, April 4, 2005 - link
Instead of trying to take screenshots, maybe you could've used one of those desktop video capture programs to try to get a better visual representation of what you were trying to explain.