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Hyper-threaded Technology Tested.

post #1 of 35
Thread Starter 
This is a small study to see if Hyper-threaded technology has any benefit on Crysis 3.

I've always been a supporter of HT. This support came from my first test a few years back. I tested HT on and off on a i7 920 in BFBC2. I gained over 15fps on average. It helped reduce the CPU bottleneck on my old Crossfire setup, which in turn allowed the GPU's to show their strength!

However, I now wonder if HT helps in CPU intensive areas of games. What better game to test than Crysis 3.

Results are below:
CPU 4.5GHz,
RAM @ CL10 2400MHz,
GPU's @ Stock (CFX ON),
HPET Enabled

Crysis 3 Settings:



HT ON:


HT ON Usage:


HT OFF:


HT OFF Usage:


So as you can see, there is a healthy gain with HT! Just wanted to note, when HT is enabled, my fps was more steady in C3.

Thanks for reading and hope you all found this useful.

Edit:

As requested:

Hitman Absolution:

Settings:


HT ON:


Usage:


HT OFF:


Usage:


2fps min decrease with HT. Interesting.

Edit 2:

Tomb Raider Tested!

Helicopter Pad overlooking shanty town (Heavily CPU Limited)

SETTINGS:


HT ON:


HT OFF:


After testing, I found the level of detail (distance) was the culprit to the CPU overhead. See below:
Warning: Spoiler! (Click to show)
LOW:


MEDIUM:


NORMAL:


HIGH:


ULTRA:

Edited by BradleyW - 2/7/16 at 5:23am
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post #2 of 35
That is a nice test. It seems that in those games, hyperthreading is nice. However, there do exist benchmarks on some things that show a decrease in performance.

Here are some things you might want to look over and reply about so we can see what you think about these.

http://www.extremetech.com/computing/133121-maximized-performance-comparing-the-effects-of-hyper-threading-software-updates

http://forums.anandtech.com/showthread.php?t=2274887

The consensus in some other forums is that hyperthreading is unnecessary in quad cores or higher. But your tests seem to contradict that, so the debate is still open.

EDIT: I was reading Maximum PC a few months ago and they did some benchmarks and Hitman Absolution actually performed worse with hyperthreading on. I would like to see your results with Hitman Absolution if you have the time or desire.
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post #3 of 35
what are the gain %s with the quads+HT?
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post #4 of 35
Thread Starter 
Quote:
Originally Posted by Thready View Post

That is a nice test. It seems that in those games, hyperthreading is nice. However, there do exist benchmarks on some things that show a decrease in performance.

Here are some things you might want to look over and reply about so we can see what you think about these.

http://www.extremetech.com/computing/133121-maximized-performance-comparing-the-effects-of-hyper-threading-software-updates

http://forums.anandtech.com/showthread.php?t=2274887

The consensus in some other forums is that hyperthreading is unnecessary in quad cores or higher. But your tests seem to contradict that, so the debate is still open.

EDIT: I was reading Maximum PC a few months ago and they did some benchmarks and Hitman Absolution actually performed worse with hyperthreading on. I would like to see your results with Hitman Absolution if you have the time or desire.

I will certainly get some Hitman tested. I know a few good places which are CPU bound. smile.gif
I remember HT helping on the 3770K. Would be interesting to see what my 3930K does. All I remember is having about 20+ extra fps in cpu bound locations after upgrading to the 6 core. I never tested HT on vs off on this chip.
Edited by BradleyW - 4/25/14 at 2:53am
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post #5 of 35
Thread Starter 
As requested:

Hitman Absolution:

Settings:


HT ON:


Usage:


HT OFF:


Usage:


2fps min decrease with HT. Interesting.
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post #6 of 35
this just shows it is dependent on the game, but generally hyperthreading seems to work. I don't think it would be worth fussing with turning it off and on per game just to gain a few frames.
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post #7 of 35
Thread Starter 
Quote:
Originally Posted by Thready View Post

this just shows it is dependent on the game, but generally hyperthreading seems to work. I don't think it would be worth fussing with turning it off and on per game just to gain a few frames.

I just tell RadeonPro to not use HT on certain games. Takes 5 seconds. thumb.gif
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post #8 of 35
Quote:
Originally Posted by BradleyW View Post

I just tell RadeonPro to not use HT on certain games. Takes 5 seconds. thumb.gif

I am an AMD man and every time I have to fuss with anything, it is a pain in the rear end.
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post #9 of 35
Thread Starter 
bump
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post #10 of 35
So, what were the results for BF4... in summary?

I have HT off on my 4770k... is that wrong?
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