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i7 Hyperthreading negatively impacts gaming

post #1 of 84
Thread Starter 
http://www.xbitlabs.com/articles/cpu...0_7.html#sect0

Nice to see some actual testing in this regard. I noticed almost immediately how games (and benches like 3dmark06) were noticeably better with HT off.

18% difference in Left 4 Dead? Ouch.

Extra heat and slower performance in games = time to turn it off
LL
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post #2 of 84
wow intel really messed up when they added that lol
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post #3 of 84
Interesting, although i see no negative impacts on having HT on with my machine. Is this only for the 975 or is there more tests showing all i7's?
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post #4 of 84
Thread Starter 
If its a few percentage points it would be hard to catch (especially given your gpu setup).

Try running 3dmark06 with HT off and on.
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post #5 of 84
wow rob interesting thread.

it would be interesting to compare even something like Q9xxx vs Core i7 with HT disabled

i'd rep you if i could

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post #6 of 84
Seems like games that are well multi-threaded take a hit. Ouch, way to go backwards...
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post #7 of 84
So far heres the differnce with HT on and OFF with me

HT on- programs load alot faster when booting into windows
HT off- Less "stutter" in games such as COD4.

Right now i'm running ht on and so far its good.
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post #8 of 84
Quote:
Originally Posted by Robilar View Post
If its a few percentage points it would be hard to catch (especially given your gpu setup).

Try running 3dmark06 with HT off and on.
I don't have 06 :*(!! only vantage Althought i might buy it tonight PERHAPS and ill let ya know
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post #9 of 84
Quote:
Originally Posted by Robilar View Post
If its a few percentage points it would be hard to catch (especially given your gpu setup).

Try running 3dmark06 with HT off and on.
I have and HT produces higher results. Same with vantage.
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post #10 of 84
Quote:
Originally Posted by I_am_McLovin View Post
So far heres the differnce with HT on and OFF with me

HT on- programs load alot faster when booting into windows
HT off- Less "stutter" in games such as COD4.

Right now i'm running ht on and so far its good.
What type of stuttering are you getting? might be gpu sync or pb sleep settings.
Try these settings to see if it alleviates the problem r_gpusync 0 and pb_sleep 500 then pb_writecfg.
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