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Old 10-26-2017, 06:10 PM   #1
Smart_Guy
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Join Date: Oct 2011
Location: Saudi Arabia
Posts: 4,150
Default So I added a second GTX 680 4GB in SLI. Here's how it works with modern games.

Yeah, I got it for $101.33 USD total cost.

I did some benchmarks and the details are below.

Relative system specs.:
CPU: Intel Core i5 3570K 3.4GHz overclocked to 4.2GHz for these tests
RAM: 16GB 1600MHz
Mamaboard: ASRock Extreme6 Z77
PSU: Cooler Master Silent Pro Gold 1000w
Video card 1: MSI GTX 680 Twin Frozr 4GB OC (the original)
Video card 2:
EVGA GTX 680 Classified 4GB SC (the added one)

Games crash sometimes so I reduced GPU clock to matching 1058MHz with boost to see how it works.

Used software:
1- Unigine Heaven.
2- Grand Theft Auto 5.
3- The Witcher 3.
4- Doom.
5- Gears of War 4.


Unigine Heaven (DX11):

1080p (max settings)
Min. 26
Avg. 71
Max. 155

1440p (high with tessellation normal)
Min. 22
Avg. 49
Max. 108

4K (medium with tessellation moderate)
Min. 7
Avg. 25
Max. 54


Grand Theft Auto 5 (DX11):

1080p (max with MSAA @4X)
Min. 44
Avg. 55
Max. 73

1440p (max with MSAA @2X)
Min. 44
Avg. 52
Max. 60

4K (high settings with high res shadows off and people variation min.)
Min. 33
Avg. 38
Max. 46


The Witcher 3 (DX11):

1080p (ultra with no hair works)
Min. 48
Avg. 61
Max. 91

1440p (ultra, no hair works and foliage range high)
Min. 39
Avg. 48
Max. 75

4K (high, no hair work and foliage range high)
Min. 21
Avg. 26
Max. 44


Doom (OpenGL):

1080p (ultra)
Min. 64
Avg. 81
Max. 111

1040p (ultra)
Min. 41
Avg. 50
Max. 74

4K (ultra)
Min. 18
Avg. 24
Max. 38


Gears of War 4 (DX12):

1080p (ultra)
Min. 49 (44 on one card)
Avg. 83 (55 on one card)
Max. 110 (65 on one card)

1440p (ultra, both world and character texture details on high)
Min. 41 (30 on one card)
Avg. 55 (35 on one card)
Max. 64 (43 on one card)

4K (medium)
Min. 29 (20 on one card)
Avg. 39 (25 on one card)
Max. 44 (30 on one card)


Conclusion:
I did some research on GTX 1060 6GB and found my results are similar. Maybe no all games support SLI, but all games I'm playing now do. Probably all future games will too given some time. I don't really buy games once they are released anyway. With some tweaks here and there, 4K could be playable too. But generally it is a 1080p setup if high quality settings are desired. I think my build can now live 3-4 years more per my preferences in games.
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