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BF3 CPU bottleneck? Really?

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skipsneeky2 said:
For you 3930k owners,how is the cpu scaling as far as usage across cores and threads?

Got my 3930k@4ghz and i noticed only 6 threads in task manager are active,the other 6 are completely idle,running all high no msaa@1920x1200 with a single gtx670.

Is the game smart enough to know which threads are cores and which are hyperthreading?
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All I know is that from my testing the game continues to benefit up to 8 threads. After 4 threads, the benefit of each additional thread is small (2 or 3fps) but it does add up once you get 8 threads. After 8 threads the benefit is precisely zero. My testing was not perfect but it did show a small benefit. Regarding the game knowing what is a core vs a thread, I don't know.

1b0b1 said:
I did notice it when it dropped, it was buggy as hell. Anyways, normally, fps drops to 40~50's for 1 sec and then goes back to 60+ (Depending on the maps). I was wondering if this is normal because the gtx 680 should be able to handle everything you throw at it.
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It is normal. Try to unsderstand that people with less powerful cards are actually not able to play the game on the settings you are. If you had a GTX580, your mins would be like in the 20's or something like that, maybe lower 30's if you were lucky. My friend just got a 7970ghz edition card and his fps was floating around 38 or so on a large, full map at 1920x1200. That was closer to the min, but still it should tell you that mins in the 40's is normal for your card.
I have two 670's (OCd editions) and when I play with one card active, the FPS mins are lower 40's, sometimes in the upper 30's if I recall. Granted your card is faster, but its not so much faster as to change the equation that much. Nothing wrong with your FPS from what I am hearing, but I understand why you are puzzled. It is because BF3 is a beast of a game with a next gen game engine and when you got 64 players going insane trying to kill eachother, it will strain both CPU and GPU, even the latest and greatest.

EDIT: Also, your 680 IS handling what you are throwing at it. 40-50 MINIMUM fps is by all accounts GOOD, especially for a game like this.
 
Thanks moobbogg, from now on, i'll keep fraps benchmarks and msi afterburner hardware monitor on while I am playing to get more accurate results.
 
moonbogg said:
All I know is that from my testing the game continues to benefit up to 8 threads. After 4 threads, the benefit of each additional thread is small (2 or 3fps) but it does add up once you get 8 threads. After 8 threads the benefit is precisely zero. My testing was not perfect but it did show a small benefit. Regarding the game knowing what is a core vs a thread, I don't know.
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Wonder what would benefit the game more,4 cores with ht or 6 cores without ht?
 
skipsneeky2 said:
Wonder what would benefit the game more,4 cores with ht or 6 cores without ht?
Click to expand...

From my testing I would gather that 4c with HT would provide a very slight benefit of about 3fps or so over a 6 core no HT chip. This is assuming that they are both the same kind of CPU, same frequency, same cache etc such as a sandy bridge or ivy bridge. In that case, any 6 core chip you get will have HT capability anyways.
 
There is no bottleneck. My i7 950 4ghz can play 60 FPS constant on ultra on every map i played so far
 
Fx1 said:
There is no bottleneck. My i7 950 4ghz can play 60 FPS constant on ultra on every map i played so far
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I believe it if you haven't played many maps... There's no way an i7 950 @ 4GHz is going to maintain a 60fps minimum on every map, particularly with 64 players. Maybe you just looked away from the ticker. :\
 
Fx1 said:
because im not getting paid advertising money to do so.

The yellow 60 in the corner of my screen never changes. Especially on Close quarters
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LOL,my Evga gtx670 FTW at stock handles the game maxed out as well,only on Metro can it sustain 60fps with a 4ghz 3930k....Caspian Border or any other big outdoor map and fps can tank easily into the 40s at times and i bet that would be the case for you as well.

I end up running high settings no msaa simply cause ultra even without msaa sorta feels choppy outside of Metro at times like i am at 45fps,despite fraps displaying a sustained 60fps.
 
My point is Fx1 is just trolling.

And his response when asked to do some frap runs is quite comical.
 
Last edited:
Makaveli said:
Why did you create this thread?

Its pretty obvious you don't want help.
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First of all, I didn't create this threat. Second, if I didn't need any help, I wouldn't have mentioned my problem here, right ?

On the other hand, what the guy said is theoretically true but in the real world, we all know that it is not. That's why I asked for an evidence, which is the most logical thing to ask for in this particular situation.

Also, it is pointless to throw a claim that contradicts with almost all the opinions stated in this thread without even bothering to back it up with a real evidence.

After all, we are all here to help each others, aren't we ?
 
1b0b1 said:
First of all, I didn't create this threat. Second, if I didn't need any help, I wouldn't have mentioned my problem here, right ?

On the other hand, what the guy said is theoretically true but in the real world, we all know that it is not. That's why I asked for an evidence, which is the most logical thing to ask for in this particular situation.

Also, it is pointless to throw a claim that contradicts with almost all the opinions stated in this thread without even bothering to back it up with a real evidence.

After all, we are all here to help each others, aren't we ?
Click to expand...

I know you didn't create the thread that is why I deleted the post and corrected it to what is shows above. i'm agreeing with you guys!
 
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