Does having multiple screens. Decrease Performance? [Results]

[smogsy]

Question: Does having multiple screens. Decrease Performance? & by how much?

All tests done Firestrike Ultra

ive retested Test set 1 Test 1 5 times with same results..

Monitor 1: 3440x1440
Monitor 2: 2560x1440

Test Set 1 GTX1080

Test 0 [single monitor performancer mode]
Graphics score
5 183
Graphics test 1
28.57 FPS
Graphics test 2
18.60 FPS
Physics score
14 875
Physics test
47.22 FPS
Combined score
2 676
Combined test
12.45 FPS

Test 0.1 [Max performance setting + single monitor performance mode set
Graphics score
5 139
Graphics test 1
28.36 FPS
Graphics test 2
18.43 FPS
Physics score
14 757
Physics test
46.85 FPS
Combined score
2 662
Combined test
12.38 FPS

Test 1: Gaming only on 1 monitor connected
Graphics score
5 149
Graphics test 1
28.44 FPS
Graphics test 2
18.46 FPS
Physics score
13 736
Physics test
43.61 FPS
Combined score
2 660
Combined test
12.37 FPS

Test 2: Gaming only on 2 Monitors Connected
Graphics score
7 222
Graphics test 1
32.60 FPS
Graphics test 2
30.29 FPS
Physics score
14 871
Physics test
47.21 FPS
Combined score
4 018
Combined test
18.69 FPS

Test 3: Gaming with YouTube on 2nd Monitor in SW acceleration mode [stutterly youtube]
Graphics score
6 900
Graphics test 1
31.00 FPS
Graphics test 2
29.06 FPS
Physics score
13 440
Physics test
42.67 FPS
Combined score
3 892
Combined test
18.10 FPS

Test 4: Gaming with YouTube on 2nd Monitor in HW acceleration mode [stutterly youtube when game on loading screens]
Graphics score
7 006
Graphics test 1
31.63 FPS
Graphics test 2
29.38 FPS
Physics score
14 606
Physics test
46.37 FPS
Combined score
3 942
Combined test
18.34 FPS

Test 5: Gaming with YouTube on 2nd Monitor in HW acceleration mode [4K youtube [stutterly youtube when game on loading screens]
Graphics score
6 991
Graphics test 1
31.50 FPS
Graphics test 2
29.37 FPS
Physics score
14 677
Physics test
46.60 FPS
Combined score
3 926
Combined test
18.26 FPS

Test set 2: GTX1080 + GTX1060
Test 1: GTX1080 [Gaming only] 2nd Monitors Connected to [GTX1060]
Test 2: GTX1080 [Gaming only] 2nd Monitors Connected to [GTX1060] Running Youtube

 

[elrasho]

Your FPS goes up with 2 monitors connected?

 

[Rroff]

What settings are you using for GPU power management and multi display/mixed GPU acceleration?

 

[Armageus]

Your FPS goes up with 2 monitors connected?

Something wrong there. although would bet it is the GPU entering a lower power state with 1 monitor and not waking correctly for benchmark (lots of posts ref the opposite with 2 monitors the GPU power usage at idle is vastly more etc)

 

[elrasho]

Something wrong there. although would bet it is the GPU entering a lower power state with 1 monitor and not waking correctly for benchmark (lots of posts ref the opposite with 2 monitors the GPU power usage at idle is vastly more etc)

Could be. I had CF 5850s and found my FPS would drop if I used the second HDMI connection on my 1st card to carry sound to by Yamaha AV unit for surround sound.

 

[koooowweeee]

so if i had 12 monitors i could max out crysis?

 

[Nasher]

What if you just plug the same monitor in to 2 ports? Is that a cheaper solution?

 

[Brazo]

so if i had 12 monitors i could max out crysis?

You'd need a lot more than 12!

 

[smogsy]

What settings are you using for GPU power management and multi display/mixed GPU acceleration?

Nvidia default.

Got my 1060 tonight so will retrzt with 2 gpus

 

[Rroff]

For benchmarking single monitor performance you really need multi-display/mixed-GPU acceleration set to single display performance mode and power management on prefer maximum performance (or adaptive usually works) optimal doesn't represent single display performance well.

 

[smogsy]

Will do a run with changed settings

 

[smogsy]

updated with results +

Running 2nd monitor on GTX1060 Causes this maybe related to GSYNC on both maybe?

 

[Mei]

*seizure warning*

 

[Rroff]

updated with results +

Running 2nd monitor on GTX1060 Causes this maybe related to GSYNC on both maybe?

IIRC its a problem with G-Sync where a window is overlapping both displays? even if its just a pixel from one window to the other.

 

[smogsy]

no pixels are overlapping..

 

[smogsy]

ill retest soon though with 2 minimized windows

edit even a small window on 1 screen causes this

 

[DragonQ]

This thread makes all sorts of no sense.