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satyr satyr is offline
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Lightbulb Why Task Manager shows Atom as dual-core?? - 06-10-2009, 01:28 AM

I am curious: why does Windows Task Manager (compare to Process Explorer, which doesn't) show in its "Performance" tab as if my Dell Mini's Intel Atom N270 1.6 GHz CPU would be a dual-core processor??

And secondly, under "Processes" tab it even allows to set Affinity (the same goes for PE mentioned above).

Also, the Everest system info tool shows the same (i.e. CPU #0, CPU #1) under Motherboard - CPU, while in other section it calls/labels the second CPU as "Virtual".

Here are links to screenshots of what both, Task Manager and Everest, display:

Task Manager - Performance

Everest - Motherboard - CPU

(click on links to see the screenshots)

I am of course asking this because I know that Atoms (I guess all types) aren't dual-core!!

Thanks, satyr
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WolfKeeper WolfKeeper is offline
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Default 06-10-2009, 01:43 AM

They're not dual core, but they are capable of hyperthreading, which gives the illusion of two cores.


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reflex reflex is offline
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Default 06-10-2009, 02:14 AM

WolfKeeper is right about Hyper-threading, Intel's tech. to make a single CPU act like multiple CPUs.

Quote:
Originally Posted by satyr View Post
I am of course asking this because I know that Atoms (I guess all types) aren't dual-core!!
The Atom 330 for desktops is two Atoms stuck together, so it's a dual-core chip. And HyperThreading makes it a "quad-core".


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adonian adonian is offline
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Default 06-10-2009, 04:44 AM

would have been nice to see the 330's in the mini's, the cost difference would only be like $25.
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psyopper psyopper is offline
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Default 06-10-2009, 05:06 AM

Yes, and it would be twice the thermal load. Not much, but significant when trying to passively cool the processor - otherwise it would have required a fan to keep it cool and if there's one thing I love the absolute most about my Mini 9 it's the blessed silence.


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adonian adonian is offline
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Default 06-10-2009, 05:32 AM

true, I love the fact that I cant turn on my 9 and not have to listen to the jet engine roaring like my 1525 , heck even my macbook nvidia 2.0 (white) gets loud at times, at least I run OS X on my 9.
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satyr satyr is offline
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Default 06-11-2009, 01:54 AM

Ahh OK, it's because of hyperthreading then, I didn't imagine that the result might be two CPUs (cores) shown in Task Manager. Thanks all for replies!!
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danmanx danmanx is offline
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Default 06-16-2009, 12:08 PM

Yes it is a very interesting netbook. That's one of the first thing I show others:

"Listen! Listen to the nothingness!"


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Tags
atom, cpu, dual-core, intel atom, task manager

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