i7 Users.....

[exar333]

The benchmarks below are pretty characteristic of HT. You lose a few % points in gaming (sometimes) and gain often significant performance gains in other programs, most notably encoding items.

I really don't see (personally) why you would want to disable HT. Even if you want to get that extra 2% performance or an extra 5% higher OC, will that make the difference between playable or not? No. Also, the real benefit in HT is multitasking, and not in gaming. There is a WORLD of difference in multitasking between C2Q/PhII and i7. Nehalem allows you to run a multitude of programs with large memory needs with very little slowdown. I enjoy it's benefits.

Benchmark Hyper-Threading
Crysis -0.1%
Unreal Tournament 3 -2.1%
World in Conflict -2.7%
Supreme Commander 0.3%
AVG Anti-Virus 8 6.6%
Winrar 3.80 14.8%
Winzip 11 -1.0%
Acrobat 9 Professional -1.0%
Photoshop CS 3 -1.1%
iTunes 0.0%
Lame MP3 0.0%
Studio 12 -1.9%
DivX 18.9%
XviD 0.7%
MainConcept H.264 18.3%
Premiere Pro CS3 HDTV 7.8%
Cinema 4D Release 10 8.5%
3D Studio Max 9 10.3%
Fritz 11 23.8%
Nero 8 Recode 23.2%
Overall: 6.2%

Source: Tom's HT Review for i7 965

 

[Tweakin]

Nice posts...those charts really sum it up.

 

[iCyborg]

Originally posted by: ExarKun333
I really don't see (personally) why you would want to disable HT.

Having a CPU run hotter (and it's like 5-10 degrees under load for me) and with a small performance impact in the majority of cases. Who'd not want that, right?

Encoding is the only thing where HT helps for probably most people. And I don't know about you, but I don't twiddle my thumbs waiting for some encoding job to finish, so a difference between 3 and 4 hours is meaningless since I'm likely away from PC anyway.

 

[bobov]

Originally posted by: ExarKun333
I really don't see (personally) why you would want to disable HT.

HT may help encoding, but for scientific applications you'd better switch it off.

Plz see here: http://ixbtlabs.com/articles3/cpu/ci7-turbo-ht-p1.html