Hyper-Threading, am I better off with it OFF!?

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SOcRatEs

Posts: 912   +1

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Am I now better off with it off?
Would OC'ing maybe be a little more stabile?
Maybe even temps?

Thank you for any replies.

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Nodsu

Posts: 5,452   +7
Why not just Try It (TM) with HT off? It's not like you will be doing any permanent damage..
 

Didou

Posts: 4,182   +5
There aren't that many programs that will actualy run slower due to HyperThreading. It brings a certain comfort, comparable to multi-cpu systems, especialy if you like switching between many tasks.

You can turn it off if you're using Windows 2000 though.
 

Didou

Posts: 4,182   +5
Any multi-threaded application is capable of getting a performance increase due to HyperThreading & running two single-threaded applications at the same time is much smoother.
 

SOcRatEs

Posts: 912   +1
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Nodsu said:
Why not just Try It (TM) with HT off?
I did just that. ht (on/off) made small difference in temps:
off: -4°c
on: +5°c
Programs load faster with ht off and slower with ht on but only the first
time progarms are loaded. Must have something to do with L2 cache.
Didou said:
Any multi-threaded application is capable of getting a performance increase due to HyperThreading & running two single-threaded applications at the same time is much smoother.
With ht on it splits the cache 50/50 between the 2 virtual CPU's.
When I'm running a lot in the back ground a switching between them, my temps
with ht on actually go down. With ht off running same load it slows a bit and temps go up.
All this done OC'd @ 3.4.
Tedster said:
they're aren't that many programs that use hyperthreading are there?
I dont think there are any multithreaded games and not that many enduser programs.
I hope they get it together and put the $$ and time in to it with
the on set of the true dual cores and quads cores.

Mictlantecuhtli said:
It helps a bit with multithreaded applications (except when it doesn't ).
Check out dual dual-core with hyperthreading, Paxville Xeons .
My system does quite well for me, however Sean summed it up, I am topped out with older technology.
Thanks!
 
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