Frustrations with single GTX 1080 and SLI under performing on a high end rig.

bryceslade

Commendable
May 29, 2016
13
0
1,510
Hello. Thanks for taking the time to check out this thread.

I've spent nearly 3 hours tampering with my build, both hardware and software. Keep in mind I'm not an expert and indeed fairly new to the PC building world. I'm hoping to get some feedback here before I give up.

Asus Strix 1080 (Temp never goes above 65C) < Default card
GTX 1080 Founders Edition (Temp never goes above 80C) < Only used when SLI
i7 6700k
16gb RAM
Asus Z170 Pro


I've tested two games with my single Asus Strix card. Both games highest graphical settings. These tests were done in 1080p at 60hz.

Witcher 3 50-65fps
Rise of the Tomb Raider 55-60fps

I feel these games are under performing as there are benchmarks for Witcher 3 hitting 100fps and Rise of the Tomb Raider hitting 120fps with the same graphics settings. I've completely reinstalled my graphics drivers, with no improvement shown. Temperatures are very normal, with the GPU never going above 65C. The Z170 Pro and Strix 1080 are brand new. The i7 6700k is roughly 6 months old. All drivers are updated as far as I'm aware. I've thrown a lot of money into this setup and I feel it has no business being ANYWHERE below 60fps at 1080p.

Another issue I have is SLI'ing the two cards. There is little to no improvement when SLI is set up and enabled. I know it can get a little odd with different brands and clock speeds, but both cards should be synchronized via MSI Afterburner. The SLI bridge is new. The control panels confirms that SLI is indeed set up. The cards are getting nowhere close to 60fps in 4k, testing both Witcher 3 and Rise of the Tomb Raider.

I also have issues playing World of Warcraft struggling to maintain 60fps in some places, but I figured the game is poorly optimized for my i7 6700k, since the game is so CPU heavy.

EDIT: Vsync is turned OFF in both games.

I'm at a loss. I've tried nearly everything I could think of. Is it just my ignorance? Are these normal numbers? I apologize if I left any important information out. What do you guys think?
 
Solution
Is Chrome open while gaming ?

After removing the FE cared, I'd suggest:

1. Reinstall the BIOS (or upgrade to latest BIOS).
2. Set all BIOS settings to defaults
3. Boot to windows, uninstall all things nVidia reboot and reinstall **
4. Hit start button and type msconfig in the search window
5. Hit startup tab and uncheck anything you don't need starting up every time (i.e anything related to Google or Chrome)
6. Reboot
7. Open task Manager to processes tab
8. Right click on any remaining things chrome or google and "end process".
9. Go to view on Task Manager Menu bar and "Add columns" selecting memory related column headers.
10. Click on the column headers to rank by what is using highest % of each resource... start with CPU...
On the 9xx series SLI scaling averaged 70% in techpowerup's gaming test suite including games which didn't scale at all. On demanding games, it was 96% or better and sometimes even exceeded 100%. Scaling with the 10xx series is a rather paltry 18% on average.

perfrel_1920_1080.png


1. The FE Edition will throttle ... all of them do.... this will limit performance further... not a good idea to mix different model cards ... yes, it works but your better card will be gimped.

2. Witcher 3 should be 107.6 fps on the Strix, 143.1 with two Strix... For RoTR, it should be 130.3 for the single Strix and 128.7 in SLI
https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_SLI/18.html

At 4k.... W3 the Strix gets 46.8 / 75.6 in SLI ... with RoTR it's 43.9 / 39.6 in SLI

SLI, it would appear is not as yet optimized for DX12 games ... the previous TR title did very well in DX11 but fell flat w/ negative scaling in SLI. Could be many reasons for this but methinks that nVidia has no interest in improving SLI scaling at this point in time. The fact that two x70s outperform a single x80 while usually being cheaper has always been a thorn in nVidia's side cause it huts sales of the x80 where they make far higher margins. I don't think nVidia will see improving SLI performance as a priority until AMD puts up something to compete with the 1070.

Unfortunately, because you are using two different cards, you won't be able to get Asus tech support to walk you thru the troubleshooting procedure.

 
@1080p there's no game where you should experience any GPU related limitations.

Have you tried setting the power settings in the NVIDIA control panel to maximum power?
What's your GPU clock speed when gaming?
Is shadow play turned on?

What's your CPU clock speed when gaming?
And your CPU temps?
 

bryceslade

Commendable
May 29, 2016
13
0
1,510


Switched to full power mode
Shadowplay and sharing feature is off

Same framerate issues with these fixed.

GPU clock: 1974mhz
MEM clock: 5005mhz
CPU clock: 4634mhz
CPU Temp: Max around 65c
 

bryceslade

Commendable
May 29, 2016
13
0
1,510


I'm actually only getting around 50-60fps with my ONE 1080 Strix in Rise of the Tomb Raider at 1080p.

Thanks for that info on SLI. I guess I should buy another Strix eventually.
 
. Switched to full power mode
Shadowplay and sharing feature is off

Same framerate issues with these fixed.

GPU clock: 1974mhz
MEM clock: 5005mhz
CPU clock: 4634mhz
CPU Temp: Max around 65c

Strange. Everything seems to be running as it should.
How's the screen connected to the GPU? And - I know it's a dumb question but I've seen it all by now - you're positive the screen is plugged into your GPU and not into your mainboard?
 

bryceslade

Commendable
May 29, 2016
13
0
1,510


The monitor is connected via DVI into the GPU, not the motherboard.
 

bryceslade

Commendable
May 29, 2016
13
0
1,510


Yeah... It's been frustrating trying to figure out why I'm not hitting these numbers :(
 
Is Chrome open while gaming ?

After removing the FE cared, I'd suggest:

1. Reinstall the BIOS (or upgrade to latest BIOS).
2. Set all BIOS settings to defaults
3. Boot to windows, uninstall all things nVidia reboot and reinstall **
4. Hit start button and type msconfig in the search window
5. Hit startup tab and uncheck anything you don't need starting up every time (i.e anything related to Google or Chrome)
6. Reboot
7. Open task Manager to processes tab
8. Right click on any remaining things chrome or google and "end process".
9. Go to view on Task Manager Menu bar and "Add columns" selecting memory related column headers.
10. Click on the column headers to rank by what is using highest % of each resource... start with CPU and then look at others. If anything looks unusual and is not needed, end process.

Now see if anything has improved gaming wise ,,, if not, call tech support for Strix

** At this point, after uninstalling nVidia stuff i reboot and use CCleaner to remove any entry that says nVidia in any of the columns ... if you do this make sure not to remove anything else.
 
Solution

PCMAN

Distinguished
Jul 22, 2008
82
0
18,640
1 ti X XP is slower than 2 1080s did you fix it hope you did

I7 6850k 6 core 3.6@4.4
X99 mb STRIX
32GB DDR pc 3000@3150
2 EVGA 1080gtx sc both run 2101.5 / 5508 ram but this game runs no higher than 2088
2 480GB SSD ON RAID 0 16GB CACHE HD
850 watt 80+corsair

DX12 1080P BENCHMARK MAX SETTING i have everthing on max and still score 114

IN GAME max settings 70s to 144 I like to cap at 144 to my monitor refresh 144hz of SLi I'm on a 24in 3D 144hz 1ms