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To hyperthread, or not to hyperthread? That is the question! - Page 2

post #11 of 43
Thread Starter 
Quote:
Originally Posted by ghost_z View Post
sometimes ht on can help in games like gta4(i know it requires just 4 cores) but sometimes the os distributes the workload on more than 4 threads which improves the performance.....
and yes u can turn it on and off without os reinstall....

now what is ht???
think ur processor functioning in terms of a pipeline in which u r putting data in unequal intervals+the processor is taking diff. amount of time processing all that data...so actually the pipeline is not becoming saturated(or being used efficiently)due to this uneveness between data processing time...
so what ht does is...it intelligently tries to feed more data into the pipeline to make more efficient use of processor time/power.......
thats it....
thats the simplest explanation i can think of......
so the processor is able to process 2 threads simultaneously....although it wont equal the performance of 2 threads running on 2 diff. cores.....
that sound like it would help out a lot in games. Why doesnt it help all that much?
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post #12 of 43
Quote:
Originally Posted by hfcobra View Post
that sound like it would help out a lot in games. Why doesnt it help all that much?
it doesn't help that much coz as of now games aren't optimised to use ht and no game is basically using more than 4 cores....
maybe in future when games start utilizing 6-8 cores then our i7's with ht on might help in gaming as the i3 is doin currently with 2cores/4 threads with ht on.........
post #13 of 43
Ya with a air cooled setup I would just turn it off, even more so if you are just gaming on it.

Should be able to get better clocks, lower voltages and of course temps will not get as high either
post #14 of 43
Quote:
Originally Posted by hfcobra View Post
I did when I first OCed. I was a noob then so maybe I just didnt notice that it was not disabled. Everything booted just fine though so I think you can.


This is done in the BIOS and nadda to do with the OS
    
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post #15 of 43
Quote:
Originally Posted by teichu View Post
i always disable it , i think if u play lot of games , disable will be good choice to prevent stuttering , since most of games only use 2 cores
HT causes stuttering? Where? When?

And most games use 2 cores? Hmmm thats is changing as we speak.
Many use 3, or run MUCH BETTER on 3 or 4. And a large amount of available and upcoming new games/apps taken advantage of using multiple threads, like Battleforge, WoW, Crysis 2, BC3, and SC2.

And that is just playing the game by itself.
Media players and browers can take up cores/threads as well like Google Chrome.

And plus HT is not something you will notice by looking at a FPS chart.
It's ability to help an app handle and execute mutiple calculation tables makes things run much smoother without you noticing.

Quote:
Originally Posted by ghost_z View Post
it doesn't help that much coz as of now games aren't optimised to use ht and no game is basically using more than 4 cores.............
No.

Quote:
Originally Posted by ghost_z View Post
maybe in future when games start utilizing 6-8 cores then our i7's with ht on might help in gaming as the i3 is doin currently with 2cores/4 threads with ht on.........
Games/apps are eating up 8 threads now.
Playing Crysis 2, having Chrome open and a media player is 4-6 threads atleast/AT MINIMUM and full use of 4 cores.
And thats only right now.

2 cores are the new minimum. Thats slow.
4 cores are the new standard. Thats average.

By the end of the year, 6 8 and 12 core CPU's will be farther along and apps will take even more advantage of more logical cores.

Game review sites use games that are 2-5 years old.
Maybe ONE of those games was made in the last 6 months....maybe ONE.
A dual core stopped being enough for me a long time ago, and so did 4GB RAM.
Edited by amstech - 2/24/11 at 11:13am
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post #16 of 43
Funny subject. I'd say hyper-threading is intels new way to sell air to people with profit.

Although, what makes it funny Intel got pretty damn nice response to server problems as it is an whole HT is an bug in technology world while their 65% efficiency wasn't enough to push full power and instead started failing. So, they had to explain to developers advice coding accordingly to load balance which is like shooting yourself to foot and telling devels that 'we created something non-functional and we are still selling it out'.

Sad news also got to AMD as AMD is jumping to this as well, but AMD boldly calls this on bulldozer as 'modules', lol, trying desperately to tell people that 'we got something different' which is really sad also.

O and just for a though for anyone believing this HT crap. Try pushing full stream lets say 1GB through calculation on HT + physical and you will see that HT cores will lag more than 3 minutes (which is pretty damn much on todays CPUs) for every single 1 GB processed.

@ghost_z

As an developer perspective this is actually getting in ridigulous levels some of game designers and more specifically encoding and archiving already are considering 2 core CPU as an single core CPU (as they should because HT has standardize on market). I wonder how long this none sense continues and when do people realize.
Edited by TwL - 2/24/11 at 11:04am
post #17 of 43
Quote:
Originally Posted by amstech View Post
HT causes stuttering? Where? When?

And most games use 2 cores? Hmmm thats is changing as we speak.
Many use 3, or run MUCH BETTER on 3 or 4. And a large amount of available and upcoming new games/apps taken advantage of using multiple threads, like Battleforge, WoW, Crysis 2, BC3, and SC2.

And that is just playing the game by itself.
Media players and browers can take up cores/threads as well like Google Chrome.

Read above.
I am sure Google Chrome just maxes out a thread too
post #18 of 43
I have a 4ghz OC on my 920 with HT on, turned it off and got a 0C change in temps. It doesn't always lower your temps, try turning it on and see what happens...
    
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post #19 of 43
Thread Starter 
alright thanks for all the replies! I think my questions have been answered now.
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post #20 of 43
Quote:
Originally Posted by amstech View Post
HT causes stuttering? Where? When?

And most games use 2 cores? Hmmm thats is changing as we speak.
Many use 3, or run MUCH BETTER on 3 or 4. And a large amount of available and upcoming new games/apps taken advantage of using multiple threads, like Battleforge, WoW, Crysis 2, BC3, and SC2.

And that is just playing the game by itself.
Media players and browers can take up cores/threads as well like Google Chrome.


No.


Games/apps are eating up 8 threads now.
Playing Crysis 2, having Chrome open and a media player is 4 threads and full use of 4 cores.
And thats only right now.
this is absolutely wrong...99% of games natively does not support more than 4 physical cores natively....
it the os which is distributing the load across extra threads(thats why while running intensive games like gta 4 with ht onthe cpu is just 30-40% utilized),....
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