Should Hyperthreading be turned Off ?

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Xsan3

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#1 Xsan3
Member since 2009 • 2618 Posts

My HTPC/Nettop - is fitted with an ATOM 330 1.6ghzprocessor and an ATI 4330.

This unit has - of course - Hyperthreading. I can't decide if by keeping it on or off helps at all with graphics?

My logic is - if H/T is activated, then it basically cuts that core's speed and resources in half - waht do you think?

And if H/T is off - should it actually improve graphics - say for, HD movies and so forth. Again, like I said - I can't really tell the difference one way or the otehr if it's turned on or off??

Thx for ur input....

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oclane

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#2 oclane
Member since 2007 • 68 Posts

Well on an atom processor you might want slightly higher performance and Hyperthreading could improve multitasking on the computer as it emulates virtual cores it might be worth doing it, doubt it could hurt it was alright on my pentium 4 HT

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Luminouslight

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#3 Luminouslight
Member since 2007 • 6397 Posts
Largely it depends on whether the program supports hyperthreading or not. If it doesn't, then there will be a slight performance drop, but video encoding typically does support hyperthreading and will benefit from it.
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Xsan3

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#4 Xsan3
Member since 2009 • 2618 Posts

When should Hyperthreading be turned off? Is there a specific time or program when u'll actually be worse off using H/T ?

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Luminouslight

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#5 Luminouslight
Member since 2007 • 6397 Posts

When should Hyperthreading be turned off? Is there a specific time or program when u'll actually be worse off using H/T ?

Xsan3
Most games don't support hyperthreading, if you are going to use only 1 program (such as PC game) which does not support it and you have trouble running it, then I see it plausible to turn it off to get a couple frames, but considering you have a nettop, then I don't really think you encounter such a time.
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Xsan3

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#6 Xsan3
Member since 2009 • 2618 Posts

Yeah - not much gaming. I have tried of course. COD4, 5, 6 - are just too sloppy. I think the Graphics card would support it okay - - but the CPU is very limited. Even if the CPU were clocked to 2.0ghz - I couldn't see that doing a whole lot though...Might clear up the HD movies a tad though.

Maybe Diablo 3 or Starcraft 2 will play??

Thx for the input. Much appreciated..

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Luminouslight

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#7 Luminouslight
Member since 2007 • 6397 Posts

Yeah - not much gaming. I have tried of course. COD4, 5, 6 - are just too sloppy. I think the Graphics card would support it okay - - but the CPU is very limited. Even if the CPU were clocked to 2.0ghz - I couldn't see that doing a whole lot though...Might clear up the HD movies a tad though.

Maybe Diablo 3 or Starcraft 2 will play??

Thx for the input. Much appreciated..

Xsan3
The processor is just too weak for current games. Now a days you need at least a decent dual core to get into the newest games. While Diablo 3 and Starcraft 2 system specs will probably be pretty low, I don't think it would run well on an Intel atom.
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Xsan3

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#8 Xsan3
Member since 2009 • 2618 Posts

I was just looking up benchmarks of the Atom CPU's vs. Pentum 4 2.66ghz/M

Was interesting how - the Atom wins out every test from Video decoding, power consumption and Compression - and a large win at that,,

But, when faced with 3d graphics such as 3Dmark and WOW - etc . . The Pentium 4/M almost doubled the Atom's capabilities.

And how old is the P-4/M ??

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oclane

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#9 oclane
Member since 2007 • 68 Posts

Pentium 4 HT is pretty old now pre 2005 at least a very good non duel core processor though

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Xsan3

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#10 Xsan3
Member since 2009 • 2618 Posts

Pentium 4 HT is pretty old now pre 2005 at least a very good non duel core processor though

oclane

Definately a WiN!!-CPU. Interesting that we havn't been able to really out clock the P4s yet. Obviously the newer CPU's are much more efficient and utilize more resources and in turn - make computing faster..But the clock speeds havn't reallychanged at all -since.

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#11 JigglyWiggly_
Member since 2009 • 24625 Posts
Always keep HT on, it will DEFINITELY improve performance on that slow atom cpu.