Massive sudden drop in performance

JsnBarbs

JsnBarbs

JsnBarbs

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Joined
27 Oct 2018
Posts
5
Hi all

I'm desperately hoping someone can help me with an extremely frustrating issue that's been driving me nuts!

I recently spent a lot of money on significantly upgrading my Gaming PC, and am struggling with an unexplained and sudden drop in my fps across multiple games.
Directly after upgrading my PC, and for the following few weeks thereafter, everything was great and the gaming performance was perfectly inline with what you might expect from the hardware I am running.
Pretty much overnight, however, something has happened and my fps across multiple games has plummeted. It is not an intermittent drop in fps, but rather consistently poor, as if the system suddenly lost all of its horsepower while in game.

I am not aware of anything that happened to trigger this, and did not knowingly make ANY changes to anything or knowingly upgrade any drivers or software either.

I have the following setup:
  • Intel Core i7 8700k
  • MSI Z370 PC PRO
  • 16GB DDR4 3200mhz
  • ASUS nVIDIA GTX 1080Ti 11GB
  • Hard drives are 3 Samsung SSD's (an EVO 840, 850 and 860). Samunsg Magician reports all 3 as running optimally with latest firmware and on 6GB SATA interface
  • Dell S2716DG 1440P G-sync monitor (primary screen, connected via DisplayPort. G-Sync is enabled in Nvidia settings)
  • Samsung T28C570 1080P monitor (connected via HDMI)
  • Corsair CS650M PSU
  • Windows 10 64 bit
  • Nvidia 416.34 drivers
  • CPU and GPU are NOT overclocked

To provide an idea on the problem, I was playing the following games with no issues previously:
  • Battlefield 1, Ultra settings, 1440P, average around 120/130 fps
  • Far Cry 5, Ultra settings, 1440P, average around 100 fps
Since the issue began, however, Battlefield 1 now struggles to even maintain 55/60 fps and Far Cry 5 is around 70 fps on average, all on the same resolution and settings as previously. No in game settings seem to have changed at all, and V sync is definitely turned off in all games

The steps I have taken to fix the situation are:
  • Reinstalled Nvidia drivers
  • Rolled back to older Nvidia drivers
  • Disabled G-Sync
  • Ensured v-sync is disabled in all games
  • Updated BIOS
  • Reinstalled Windows
  • I lent the GFX card to a mate who ran it in his system, and got the performance and FPS you might expect from a GTX 1080Ti
  • Ensured DX12 is DISABLED in all games
  • Running 'Time Spy' 3DMark benchmark on my PC with default settings yields a score of 8967, with a Graphics score of 9335 and a CPU score of 7333. Comparing these results to similar systems, it's exactly inline with what you would expect, so the hardware seems to be working just fine.

Since I can't seem to insert the screenshots, here are some key data from CPU-z and GPU-Z while Battlefield 1 is playing:
  • GPU Core Clock: 1480Mhz (consistent)
  • GPU Memory Clock: 1377Mhz (consistent)
  • GPU temperature: 76 deg - 82 deg
  • Memory Used: 5088MB
  • GPU load: 98% - 100% (consistent)
  • CPU Temperature: 53 deg
  • Bus Interface: PCIe x16 3.0
There is a chance that the FPS counters in game are 'lying' to me, as the performance simply doesn't feel like it's degraded, but I don't see how various different FPS counters in different games could all report equally poor and incorrect FPS. I cannot see any evidence of thermal throttling on the CPU, and CPU/GPU temperatures all seem to be reasonable.

Absolutely everything is telling me the system is running perfectly, and at full speed, but the fps counter in all games is simply contradicting everything else.

I'm completely stumped, and don't know what to do. Any assistance really would be greatly appreciated.
 
For reference OP

11tpzjs.jpg
My 1080ti @ stock.

So what is your 1080ti clocking whilst in a game?
Do you have power management to adaptive in Nvidia control panel?

To upload a pic just stick it on tinypic and post the img code for forums
 
Quartz said:
What results do you get if you use FRAPS instead of the in-game counters?
Click to expand...
Thanks for your reply. I haven't used FRAPS as yet, but the built in windows 10 FPS counter (Shadowplay I think it's called), the built in game FPS counter and MSI afterburner all show similarly poor fps.
 
YoungBlood said:
For reference OP

11tpzjs.jpg
My 1080ti @ stock.

So what is your 1080ti clocking whilst in a game?
Do you have power management to adaptive in Nvidia control panel?

To upload a pic just stick it on tinypic and post the img code for forums
Click to expand...

Hi there

My card is clocking at 1810mhz in game (assuming you meant the core clock speed). Power management is set to 'Optimal Power' in the Nvidia control Panel.

Thank you for the tip on how to post images.

2qtxzj5.jpg
 
On the surface your GPU clock speed is fine 1810 MHz is okay, more so when your sitting at 80+ degrees as indicated by which point the clock speed will have tapered off.

I would check the setting and resolution scale as suggested.
 
youdsy said:
sure resolution scale is 100%?
Click to expand...
And we have a winner! As usual, it's something simple in the end. I have absolutely no idea how it happened, wether I did it accidentally, or if something made the change in the background, but the resolution scale on all games had jumped to 150%. I don't know how I missed it earlier, but since I never touch this setting, I never saw a reason for it to have changed. Anyways, thanks everyone for all of your assistance!
 
JsnBarbs said:
And we have a winner! As usual, it's something simple in the end. I have absolutely no idea how it happened, wether I did it accidentally, or if something made the change in the background, but the resolution scale on all games had jumped to 150%. I don't know how I missed it earlier, but since I never touch this setting, I never saw a reason for it to have changed. Anyways, thanks everyone for all of your assistance!
Click to expand...
I know the nvidia experience will autoset the game settings if you click a button. I was going to say I get higher frames on my 1080 none to but then I noticed your at 1440 bit 1080 oops. What software do you use to show all that on the left of the screen?
 
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