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Battlefield 3 - CPU usage higher than GPU's

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  • Battlefield
  • Graphics
  • CPUs
  • GPUs
Last response: in Graphics Cards
June 16, 2014 3:11:44 AM

Hey,

I recently bought an MSI Radeon R9 280x 3GB. I thought I'd be ALWAYS running Battlefield 3 on ultra with 60fps. But I don't. I experience some fps drops to 40-45 when I play on big maps with 64 players - for example Caspian Border. So I checked what's going on and it turned out that when the framerate is about 40 then CPU usage is ~90-95% and GPU 70-80%. So does my CPU bottleneck my GPU? The most important question - if I upgrade my rig to i7 4770k will it improve my perfomance and will the problem disappear? What's causing the problem?

Thanks for your help

Specs:
i5 2500 3.30GHz
MSI R9 280x 3GB
8 GB RAM 1333MHz
WD Caviar Green 1TB
AsRock Z68 Pro3 Gen3
PSU 600W
Windows 8.1 Pro 64bit

More about : battlefield cpu usage higher gpu

June 16, 2014 3:21:49 AM

One should never expect consistent frame rates from Battlefield 3, unfortunately it just isn't that stable. How does your system fair with some other application? Perhaps try running something like futuremark to see how your card goes and then compare it to the CPU's performance on Prime95 performing some FFT length iterations.

If I were to guess where the bottle neck in your system would be, I'd probably be inclined to point the the 8GB of 1333MHz DDR3. 1600MHz (as a minimum) would probably deliver more bang for the rest of your buck.
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June 16, 2014 3:26:58 AM

Yep - can't overclcok a non k cpu.

I would've thought the 2500 would have no probs looking after a 280X

What cpu temps are you getting?

You might not need to get another cpu .
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June 16, 2014 3:35:33 AM

its a old cpu that is for sure and i agree 1600mhz ram could help the situation but i think amd finally caught up to Intel when the i5-2500 was matched with the 280x haha

you dont really need a i7. just get a new i5 and save for the skylake (14nm) set up.

the best you can get on your current mobo is Intel Core i5-3570K or the non k and no oc would get the job done.
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June 16, 2014 3:41:29 AM

iron8orn said:
its a old cpu that is for sure and i agree 1600mhz ram could help the situation but i think amd finally caught up to Intel when the i5-2500 was matched with the 280x haha

you dont really need a i7. just get a new i5 and save for the skylake (14nm) set up.

the best you can get on your current mobo is Intel Core i5-3570K or the non k and no oc would get the job done.


Bro i am having I5 2400
will R9 270x Bottleneck my CPU ..
as he is facing problem with R9 280x i know it is power full card as compare to R9 270x
or should i go for GTX 750ti..

thanks
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June 16, 2014 3:58:00 AM

i7baby is trying to answer your bottleneck question but you need to cooperate.

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June 16, 2014 4:01:37 AM

iron8orn said:
i7baby is trying to answer your bottleneck question but you need to cooperate.



So R9 270 wii bottleneck i5 2400
what about GTX 750TI
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a c 1017 à CPUs
June 16, 2014 4:04:09 AM

Start your own thread. Don't try to hijack this one.
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June 16, 2014 4:07:50 AM

if the i5-2400 is indeed bottlenecking your current card it would bottleneck any high performance gpu.

it could honestly be your ram/timing
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June 16, 2014 4:10:25 AM

i7Baby said:
Start your own thread. Don't try to hijack this one.


o.. who does that lol i thought it was the person that started the thread.
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June 16, 2014 4:13:30 AM

i7Baby said:
Start your own thread. Don't try to hijack this one.


ooPS
Sorry..
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June 16, 2014 4:39:20 AM

I checked my CPU temps and they are like around 60 C. I also noticed when the framerate starts to increase, the CPU usage gets higher (90s%) and the GPU usage gets lower (80s). Do you really think that 1600MHz RAM would solve it? Also, I heard that i7's HT really helps a lot. Also, do you REALLY think it's worth upgrading to an i5-3570k? I heard there isn't any significant difference between them. Maybe after OCing it, there would be..
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June 16, 2014 4:52:57 AM

hyper threading is great and all but it would not be worth it to get with your situation unless you want to put a 4770k on a z87/97 mobo and crossfire the 280x.

then it could have some future potential.

you should probably work on your temps.

if you take a look in your bios and give us your rams speed, voltage and timing we can help with that.
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a c 1017 à CPUs
June 16, 2014 4:59:36 AM

OK its the cpu's 60C that is slowing your gpu down

Blow the case out - especially coolers and filetrs.

Turn the cpu fan right up.

If its not down to less than 50C then re-seat the cpu cooler - Google it.
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June 16, 2014 5:12:09 AM

dude you won't notice a damn difference between 1333 and 1600mhz..... and yeah if your CPU is really getting that hot it's probably throttling so yeah work on temps big time....and turn off all the power saving crap in the BIOS.
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June 16, 2014 5:13:20 AM

My RAM voltages are 1.50V. According to CPU-Z each stick works with 667MHz. Ok, i7Baby, i'll check it out. Thanks.
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June 16, 2014 5:16:52 AM

Fidgetmaster said:
dude you won't notice a damn difference between 1333 and 1600mhz.....


I think the same.
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June 16, 2014 5:21:53 AM

Your CPU is for sure on the hotter side....and all that power saving C1E/C-state etc turn all that crap off its going throttle it down big time....turn that crap off always especially if you OC....but yeah Fan/ cooling/airflow issue or you need to reapply some new thermal grease/paste.
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June 16, 2014 5:32:18 AM

Fidgetmaster said:
Your CPU is for sure on the hotter side....and all that power saving C1E/C-state etc turn all that crap off its going throttle it down big time....turn that crap off always especially if you OC....but yeah Fan/ cooling/airflow issue or you need to reapply some new thermal grease/paste.

all of the stuff you call crap works in conjunction with the turbo along with windows and does not down throttle...siiii

anyway the ram might make a small difference but it would certainly be that when your trying to push a aged 32nm chip on ultra.
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June 16, 2014 5:34:04 AM

So I checked my temps once again and they are 55C on average. But I get the same fps drops. What's more, if I lower Mesh Quality to medium everything works fine, I get pretty stable 60fps. And I wonder if Mesh Quality depends more on CPU or GPU.
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June 16, 2014 5:36:33 AM

If its 55C gaming then that's not too bad. For idle its still bad.

But I'd still reseat the cpu cooler. Try that and see if you can get it down further. Fans going strong?
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June 16, 2014 5:37:29 AM

Well I meant to say turn Turbo off too....and yes it is crap... and it CAN down throttle depending... and no YOU WILL NOT NOTICE going from 1333 to 1600mhz... stop being a noob man haha.
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June 16, 2014 5:40:55 AM

i7Baby said:
If its 55C gaming then that's not too bad. For idle its still bad.

But I'd still reseat the cpu cooler. Try that and see if you can get it down further. Fans going strong?


I meant while playing it's 55C :)  When idle it's ~35. In BIOS I tried everything with the fans - no difference.
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June 16, 2014 5:44:19 AM

Are you using the newest R9 driver 14.2 I believe?]

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June 16, 2014 5:46:42 AM

Fidgetmaster said:
Are you using the newest R9 driver 14.2 I believe?]



The newest are 14.4. Yes, I tried many versions.
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June 16, 2014 5:46:48 AM

are all of your CORES UNPARKED on the i5 2500?

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June 16, 2014 5:50:15 AM

Fidgetmaster said:
are all of your CORES UNPARKED on the i5 2500?



Yes, I can't really see the difference between parked and unparked.
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June 16, 2014 5:56:39 AM

there's a difference but depending it might only be few fps... that's weird though man I'm getting pretty much same fps as you but only with an fx4300 and a gigabyte R9270 haha. like Wow you should be destroying me haha

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June 16, 2014 6:01:29 AM

I mean, most of the time I get stable 60fps. BUT in certain places fps drop to 40s, CPU usage gets higher, GPU usage gets lower. So maybe the game is not optimalized or so. But I heard people get at least 60fps. In BF4 while playing on DirectX I get ~40fps in "heavy" action but on Mantle it's 60. Unfortunately, BF3 doesn't have Mantle implemented.
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