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post #31 of 61
Thread Starter 
Well I have overclocked my cpu to 4.9ghz 5 hours prime95 blend stable, but still I dont get the performance I want with two 7970 in bf3 multiplayer. I have a little bit more fps now, and less stutter, but still the fps drops to around 65 some times. Most of the time im around 85 fps. And some times around 120. The fps is really unstable. I have also noticed that the memory usage is constantly over 3 gb while playing bf3, according to afterburner. Could bf3 really use more than 3 gb, playing on 1080p? Also the gpu usage is around 60% and havent increased, despite my high OC.I try to post some screens tomorrow and see what we can get.
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post #32 of 61
Quote:
Originally Posted by PachAz View Post

Well I have overclocked my cpu to 4.9ghz 5 hours prime95 blend stable, but still I dont get the performance I want with two 7970 in bf3 multiplayer. I have a little bit more fps now, and less stutter, but still the fps drops to around 65 some times. Most of the time im around 85 fps. And some times around 120. The fps is really unstable. I have also noticed that the memory usage is constantly over 3 gb while playing bf3, according to afterburner. Could bf3 really use more than 3 gb, playing on 1080p? Also the gpu usage is around 60% and havent increased, despite my high OC.I try to post some screens tomorrow and see what we can get.

Is the low gpu usage only in bf3 or in everything? You have to realize bf3 is coded like crap
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post #33 of 61
Thread Starter 
Only in bf3 multiplayer, in single player I have around 80-98 gpu usage. And only with CF I have this issues. With one card I get 98-99% gou usage regardles of settings.
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post #34 of 61
Sounds like a CPU-bottleneck IMO, 1080p-resolution really demands a powerful CPU to feed those GPUs. Only having 4 threads is being your biggest issue here I think...
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post #35 of 61
Thread Starter 
Well, this is as good as it gets, a i5 3570k at 4.9Ghz. But im still not convinced, I will do some more testing. I also find it intresting that bf3 use more than 3gb ram, before it used like 2.2gb maximum. Maybe some glitch in afterburner/ccc?

It is also important to mention that it is just with two cards I get the issues I describe. If I have the two 7970 at the lowest possible clock, I get 99% gpu usage, but with more stutter and lag than with only one card. It seems like the gpu configuration itself (regardles of gpu clock) makes the gaming less smooth.
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post #36 of 61
Quote:
Originally Posted by PachAz View Post

Well, this is as good as it gets, a i5 3570k at 4.9Ghz. But im still not convinced, I will do some more testing. I also find it intresting that bf3 use more than 3gb ram, before it used like 2.2gb maximum. Maybe some glitch in afterburner/ccc?

It is also important to mention that it is just with two cards I get the issues I describe. If I have the two 7970 at the lowest possible clock, I get 99% gpu usage, but with more stutter and lag than with only one card. It seems like the gpu configuration itself (regardles of gpu clock) makes the gaming less smooth.

test Valley for us and report on gpu usage

http://unigine.com/products/valley/

I think its just BF3 thats the problem
Quote:
Originally Posted by youpekkad View Post

Sounds like a CPU-bottleneck IMO, 1080p-resolution really demands a powerful CPU to feed those GPUs. Only having 4 threads is being your biggest issue here I think...

4.9Ghz 3570K isnt going to bottleneck 2 7970's
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post #37 of 61
Personally I am glad that that there are some people out there that realise a 3770K is better for gaming than a 3570k, only last week someone on here got flamed for recommending a 3770k over a 3570k for gaming, it seems like games over the last 12 month or so have been taking advantage of more than 4 cores / threads.
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post #38 of 61
Thread Starter 
I have 99% gou usage on Heaven. It seems its related to bf3 multiplayer. The i7 3770k may be good, but it will hardly be any major differance over a i5 at almost 5Ghz. Maybe 10-15 fps more with HT on. Its not that I have low fps, but the drops are huge, some times 120-140 fps, then around 85 some time, and short drops to 65. Very unstable fps. Its hard to tell, I wish I were on 120 most of the time, but im not. Ill do a heaven benchmark all settings to max, and you can examine the results.
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post #39 of 61
Quote:
Originally Posted by Stay Puft View Post

test Valley for us and report on gpu usage

http://unigine.com/products/valley/

I think its just BF3 thats the problem
4.9Ghz 3570K isnt going to bottleneck 2 7970's

In vast majority of games it wont you are right, however BF3 in 64 player servers is extremely heavy on CPU, he said he gets 99% gpu-usage with a single card, and with downclocked cards in CF but only 60-80% usage when both cards are at their default clocks, I´ve read several threads about people saying that going from i5 to i7 with a strong SLI/CF setup has boosted their FPS quite a bit, dont have evidence tho. Also take a look at rdr09s benches, he gets ~10fps more with a single HD7950@STOCK with a 2700k@4,5GHz with HT on as compared to HT off, imagine what the difference would be like if you overclocked that card and added 2nd one...


Like I said, I dont have any cold-hard data on this like I cant find those threads so cant link em but I 100% remember there was a user here with GTX670 SLI + 3570k with a hefty OC and he got dips into 60s in BF3 multi @120Hz, he upgraded to 3770k and he reported that his minimums were above 90 after that.

Take that as you want...
Edited by youpekkad - 3/14/13 at 9:36am
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post #40 of 61
Quote:
Originally Posted by PachAz View Post

I have 99% gou usage on Heaven. It seems its related to bf3 multiplayer. The i7 3770k may be good, but it will hardly be any major differance over a i5 at almost 5Ghz. Maybe 10-15 fps more with HT on. Its not that I have low fps, but the drops are huge, some times 120-140 fps, then around 85 some time, and short drops to 65. Very unstable fps. Its hard to tell, I wish I were on 120 most of the time, but im not. Ill do a heaven benchmark all settings to max, and you can examine the results.

Quote:
Originally Posted by youpekkad View Post

In vast majority of games it wont you are right, however BF3 in 64 player servers is extremely heavy on CPU, he said he gets 99% gpu-usage with a single card, and with downclocked cards in CF but only 60-80% usage when both cards are at their default clocks, I´ve read several threads about people saying that going from i5 to i7 with a strong SLI/CF setup has boosted their FPS quite a bit, dont have evidence tho. Also take a look at rdr09s benches, he gets ~10fps more with a single HD7950@STOCK with a 2700k@4,5GHz with HT on as compared to HT off, imagine what the difference would be like if you overclocked that card and added 2nd one...


Like I said, I dont have any cold-hard data on this like I cant find those threads so cant link em but I 100% remember there was a user here with GTX670 SLI + 3570k with a hefty OC and he got dips into 60s in BF3 multi @120Hz, he upgraded to 3770k and he reported that his minimums were above 90 after that.

Take that as you want...

IMO HT does minimal in BF3. There is no benchmark built into BF3 so getting the same conditions over and over again for testing is 1 in a billion. 3570K is perfectly fine Pach. It's BF3 that just sucks.
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