No bottlenecks but still low FPS. Why?

[gowthamn]

I have GTX 1080 SLI with i5-4670k. They are overclocked a bit and use only air cooling. I have 16 GM ram.

I have a 3440 x 1440, 100Hz Gsync Monitor.

I am playing Mass effect Andromeda at Ultra settings.

My usage is as follows:


CPU - 75% to 85% usage at 75*C. Max single core usage goes upto 90% usage
GPU - Both GPUs below 75*C and run around 2000Mhz. Usage around 60 to 75%
RAM - 53% of RAM used

Since none of the hardware is bottle-necking individually why do I get just 60 FPS or below? It goes as low as 40 FPS sometimes. VSync is at 100 FPS.

 

[Jester Maroc]

While reading the first sentence of your post my immediate thoughts were...i5 bottleneck! However, since you are confident that CPU usage (even on single cores) does not exceed 90% it is hard to confidently say that. Nevertheless, I cannot help but feel that your bottleneck must be the CPU.

Can you provide details about the components in your system? What are you using to monitor CPU/GPU usage? How are your temps? Is this something you only notice in Mass Effect or are you seeing similar performance dips in other games?

 

[jaslion]

I have GTX 1080 SLI with i5-4670k. They are overclocked a bit and use only air cooling. I have 16 GM ram.

I have a 3440 x 1440, 100Hz Gsync Monitor.

I am playing Mass effect Andromeda at Ultra settings.

My usage is as follows:

Turn of sli. That can help.

• 
  CPU - 75% to 85% usage at 75*C. Max single core usage goes upto 90% usage
  GPU - Both GPUs below 75*C and run around 2000Mhz. Usage around 60 to 75%
  RAM - 53% of RAM used

Since none of the hardware is bottle-necking individually why do I get just 60 FPS or below? It goes as low as 40 FPS sometimes. VSync is at 100 FPS.

Turn of sli that can help you

 

[Jester Maroc]

I would recommend reading this: http://www.pcgamer.com/mass-effect-andromeda-pc-performance-analysis/

"And as one final look at performance, I was able to test SLI with two of MSI's GTX 1080 Gaming X 8G cards. I updated the test systems to the 378.92 drivers, as prior to that SLI actually reduced performance substantially vs. a single GPU.

For this test, I also ran the cards in an X99 system (MSI X99A Gaming Pro Carbon plus i7-5930K), to see if the extra PCIe lanes on X99 would make a difference. This is using an HB SLI bridge as well, so that's not a potential bottleneck. The verdict? Yes, except at 1080p medium (which you wouldn't be using with 1080 SLI)."

I am assuming that you have a Z series MB. In that case your total PCI lanes would be 36 (16-CPU and 20-MB). If you have more than one M.2 drive and an expansion card/s in your system you could be running out of PCI lanes.

 

[assasin32]

SLI can be finicky, in the future if your FPS drops try turning it off and playing again and see if it helps.