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Gtx 770 usage fluctuates while playing games and causes fps to drop randomly?

post #1 of 7
Thread Starter 
I recently upgraded to a Gtx 770 and it runs Battlefield 3 the way it should with good performance. But when I go into MSI Afterburner the graph shows the card fluctuating between 70-90% usage, never going much above 90%. This causes my frame rate to go from 90fps all the way down to 60fps. When I go into 3dmark11 and benchmark it, it runs at 98-99% usage like you would expect it too, but yet in any game, even demanding ones like BF3, it can drop as low as 70% usage. This makes recording a challenge because the framerate is constantly changing dramatically so the video framerate is all over the place. The fluctuations are random, they arent caused by explosions or higher intensity than normal events in the game. The only correlation I have found between the game and the usage spikes is it atleast seems like when I exit a vehicle the usage drops before climbing back up again, although this doesn't necessarily happen all the time and it happens without exiting a vehicle so that may just be random chance. I have a i5-2500k and run BF3 at 1920x1080 with a second 1600x900 monitor with chrome open so I shouldn't be bottlenecking anything. This computer has run perfectly for a year for me and the only thing I have recently upgraded is the power supply and the gpu. My psu is a 850w Corsair 80+ bronze so I don't have any shortage of power. Is this a normal thing for a Gtx 770 or is there something going on that can be fixed or is faulty with the card or power supply?
post #2 of 7
What clock speed is your 2500k running at? Bf3 is very CPU intensive especially on 64player maps/matches. If you are not overclocking that CPU, you should get a good cooler and do that.

Also, go to Nvidia control panel settings and set it to single display performance and high perfomance (for bf3), see if anything changes
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XSPC RayStorm High Performance Acetal CPU Liqui... Corsair SP 120 (x10) Thermaltake Riing 120 RGB (x6) XSPC Photon 270 Tube Reservoir Reservoir 
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post #3 of 7
Do you have vertical sync enabled in Battlefield 3? That would prevent your FPS from rising above 60Hz in order to stop tearing from happening on standard refresh rate monitors. It might just be the cause of your problem, because being capped at 60 FPS is going to make your GPU usage drop compared to the uncapped benchmarks such as 3D Mark.
post #4 of 7
Thread Starter 
the i5 is running at stock 3.3Ghz, my motherboard won't let me overclock very much at all, although I am planning on getting a new one soon. But even if I am bottlenecked by the cpu I don't see how the usage would spike from 70-90%, wouldn't it stay around the same usage since that is all the farther I can go with the cpu? and also vsync is off, i get 90fps on my standard 60hz monitor, but it will drop to 70fps or even 60fps, so its not that
post #5 of 7
Quote:
Originally Posted by Keudn View Post

the i5 is running at stock 3.3Ghz, my motherboard won't let me overclock very much at all, although I am planning on getting a new one soon. But even if I am bottlenecked by the cpu I don't see how the usage would spike from 70-90%, wouldn't it stay around the same usage since that is all the farther I can go with the cpu? and also vsync is off, i get 90fps on my standard 60hz monitor, but it will drop to 70fps or even 60fps, so its not that

When i had my 660 SLI on a 3770K @ 4.8 GHZ (which is almost double the speed of your stock 2500k), my GPU usage was at 93% and 92% in this screenshot below on a 64 player match, and i assume that could have dropped below 90 in some areas. If you don't overclock your CPU, or get a faster one, you will generally have that Low GPU usage problem in Bf3, especially when you are trying to record at the same time.

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XSPC RayStorm High Performance Acetal CPU Liqui... Corsair SP 120 (x10) Thermaltake Riing 120 RGB (x6) XSPC Photon 270 Tube Reservoir Reservoir 
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post #6 of 7
Thread Starter 
I changed the options you recommended and I played in a empty Kharg Island server and the gpu ran at 98% for the majority of the time with a few dips down to 85-90% here and there. I opened up the task manager and the cpu was running anywhere from 80% to 95%. I went into a full 32 man Kharg Island server and sure enough the card ran at 97% but dipped down all the way to 80% and rarely ran flatlined at 97% for long. The cpu usage didn't increase by any noticable amount, however. I lowered the clock speeds on the card back to default (I had it slightly overclocked and it came superclocked on top of that) and played the same server again, the usage started out fluctuating like the last time but settled down and only changed from 93-97% with a few drops to 85% here and there. It seems as though the cpu may be slightly bottlenecking the card, I will look into maybe a slight overclock, but I don't know how much of one my motherboard can let me do.
post #7 of 7
Quote:
Originally Posted by Keudn View Post

I changed the options you recommended and I played in a empty Kharg Island server and the gpu ran at 98% for the majority of the time with a few dips down to 85-90% here and there. I opened up the task manager and the cpu was running anywhere from 80% to 95%. I went into a full 32 man Kharg Island server and sure enough the card ran at 97% but dipped down all the way to 80% and rarely ran flatlined at 97% for long. The cpu usage didn't increase by any noticable amount, however. I lowered the clock speeds on the card back to default (I had it slightly overclocked and it came superclocked on top of that) and played the same server again, the usage started out fluctuating like the last time but settled down and only changed from 93-97% with a few drops to 85% here and there. It seems as though the cpu may be slightly bottlenecking the card, I will look into maybe a slight overclock, but I don't know how much of one my motherboard can let me do.

That's good enough GPU usage, IMO, anything about 90% is good thumb.gif

BTW: you should CREATE YOUR RIG and attach it to your Signature wink.gif
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i7 5930k MSI X99S SLI KRAIT Edition LGA2011-v3 MSI GTX 1070 Sea-Hawk EK MSI GTX 1070 Sea-Hawk EK 
RAMHard DriveHard DriveHard Drive
HyperX 16Gb DDR4 3000Mhz CL15 WD 500GB Crucial M4 CT256M4SSD2 2.5" 256GB SATA III MLC ... Seagate 500GB 
CoolingCoolingCoolingCooling
XSPC RayStorm High Performance Acetal CPU Liqui... Corsair SP 120 (x10) Thermaltake Riing 120 RGB (x6) XSPC Photon 270 Tube Reservoir Reservoir 
CoolingCoolingCoolingCooling
EK-FC Terminal DUAL Parallel - Plexi PrimoChill 1/2in Rigid PETG Tubing - 36in - Clear  Rigid Revolver Compression Fitting 3/8" x 1/2" ... Hardwarelabs Sr1 480mm Radiator (x3) 
CoolingCoolingCoolingOS
D5 PWM PUMP (x2) Bitspower D5 / MCP655 Mod Kit V2 - Deluxe White... Bitspower Dual D5 Mod Top (Acrylic Version) - U... Windows 10 Pro 
MonitorKeyboardPowerCase
Acer B326HK 32" 4K IPS Corsair k70 RGB EVGA Supernova 1200 P2 Thermaltake Core X9 Snow Edition 
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Mushkin Enhanced Atlas Series120GB SATA III MLC... 1TB 5400RPM (Storage) Blu-ray/DVD-RW Cm X-Slim 
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