SLI No Performance Gain

AgateRouge

Prominent
Apr 28, 2017
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Hello all,

I recently purchased a second GPU( EVGA GTX 1080 FTW ), and I don't see much of a performance gain than when I had one card. I went through NVIDIA control panel and already enabled SLI, and I have an EVGA PRO SLI Bridge HB as my SLI bridge. I ran a test on Benchmark Valley and had an average FPS of 144 with the highest settings, at 1920x1080p, and had a score of 5920. It may seem high, but to me it was a bit underwhelming. I insured that all drivers were up to date.

I also tried a few games. On Tomb Raider: Rise of The Tomb Raider, I averaged around 45-50fps on highest settings at 144hz, 1920x1080p. In Ghost Recon: Wildlands I reached a peak of 53fps, and a low of 27fps with highest settings 1920x1080p. I'm unsure, but it seems a little low to me, considering that I have two GTX 1080's. My CPU is an intel i7-7700k Quad Core 4.2GHz. I do not overclocked, so I think that may be the case. I was expecting to be constantly above 60 fps, while dipping no lower than 50 fps when the visuals were extremely intense. If it's overclocking I got to do then I'll do it, I'm just not sure how to do it, but I'll learn. If not, and I have a bottleneck in my system, then please do let me know. Thank you :D.

System Specs:
GPU: EVGA GeForce GTX 1080 FTW 8GB GDDR5X (x2)
CPU: Intel Core i7-7700k Quad Core 4.2GHz
RAM: CORSAIR Vengence 16GB RAM (x2)
PSU: EVGA SuperNova 1600P2 80+ Platinum
MOBO: ASUS ROG STRIX Z270H
CPU FAN: Cooler Master V8 GTS
MEM: Samsung 850 PRO 2.5 1TB SSD
CASE: Cooler Master HAF X
OS: Windows 10 64-bit
 
Solution
You have to realize that a game has to actually take advatange of SLI, and not many games do. So right now, your game is probably only using only one ca4d. But the strangest thing is that you are getting under 60 FPS in 1080 with a single GTX 1080. Honestly, I think something else is holding you back. What are your temps looking like?

In TR, I can easily get 50 FPS on the highest settings, and I have a GTX 1060.
You have to realize that a game has to actually take advatange of SLI, and not many games do. So right now, your game is probably only using only one ca4d. But the strangest thing is that you are getting under 60 FPS in 1080 with a single GTX 1080. Honestly, I think something else is holding you back. What are your temps looking like?

In TR, I can easily get 50 FPS on the highest settings, and I have a GTX 1060.
 
Solution