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Cinebench R15 OpenGL GPU test not running at max clock

3K views 3 replies 2 participants last post by  philrock 
#1 ·
I just went through OCing my GTX 1070 and saw core clock speeds peak at 2076MHz with Heaven Bench, but when I ran Cinebench my score went from 117fps stock to 81fps OC.

When I watch GPU stats with HWiNFO running Cinebench, clock speeds don't peak higher than 1633MHz.

Has anybody had similar issues? Is there a way to get an accurat tests from Cinebench?
 
#2 ·
Sounds like it is either hitting a thermal or power target limit. Different tasks will load the cards differently.
 
#3 ·
I don't know, my temp is at 40C, the fans don't even kick on.

Did a restart, reset MSI afterburner and got 114fps.

Reapplied OC settings went down to 106fps and saw clock speed reduced to ~1400MHz.

Did an OS restart and disabled afterburner, got 117fps again. Peak clock speed is still 1633MHz, I guess that's how Cinebench runs it I just never noticed before.

Still, I think afterburner messes with Cinebench somehow.
 
#4 ·
So I ditched Cinebench, it kept giving me different results, very inconsistent. I was able to find a benchmark program for Redshift which is a GPU renderer that I plan on using for 3D animation.

At stock I got 15m33s and OC 2114MHz(clock) 4404MHz(mem) it was 14m27s. So that's about an 8% increase in performance.
 
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