Performance issues with SLI bridge?

gabby131

Reputable
Oct 18, 2014
21
0
4,520
Greetings!

I recently replaced the SLI bridge that came with my motherboard on my graphics cards. After grabbing the replacement (ASUS ROG Enthusiast 2-way SLI Bridge), my top card's speed/voltage went slightly higher.

I understand for a fact that upgrading to the new SLI bridge does not improve anything but aesthetics on my machine.

Default SLI Bridge:
- GPU1 clock 1113 idle, 1464 boost
- GPU1 Voltage 1.012(idle) 1.212 (boost)
- GPU2 clock 1114 idle, 1466 boost
- GPU2 Voltage 1.012(idle) 1.175 (boost)

ASUS ROG SLI Bridge:
- GPU1 clock 1114 idle, 1466 boost
- GPU1 Voltage 1.035(idle) 1.212 (boost)
- GPU2 clock 1114 idle, 1466 boost
- GPU2 Voltage 1.027(idle) 1.175 (boost)

Results are the same across all the monitoring softwares I use
- HW Monitor
- ASUS AI Suite
- GPU-Z
- ASUS GPU Tweak II
- EVGA Precision X 16
- MSI Afterburner (download/installed for additional confirmation)

My GPUs are both ASUS Strix GTX 970 and overclocked +150 core/+700 memory (effective), +38v Voltage, 120% Power limits (priority)

So does this mean that my previous SLI bridge is faulty? Or for some reason, the monitoring software(s) I use are just reading the cards wrong?

Thank you and regards
 
Solution
We can see that the speeds are being forced to match which is good in a SLI set up. Odd that this is happening with a new bridge though.

You could try benchmarking using both bridges using something like Unigine Valley to compare the scores.

RobCrezz

Expert
Ambassador
We can see that the speeds are being forced to match which is good in a SLI set up. Odd that this is happening with a new bridge though.

You could try benchmarking using both bridges using something like Unigine Valley to compare the scores.
 
Solution