Octane Render Ms/s as video card benchmark?

[Vue2Octane]

Hello,

is it reliable to use the Ms/s of the benchmark scenes with MSI Afterburner to check how much your card was over/underclocked?

For example: I want to simulate a GTX780 and my rig has a GTX980. I would reduce clock speeds of my 980 with afterburner to reach specs of the 780. (or usual benchmark score ratios 980/780 from the internet). As a net effect to observe the changes, I would use the Ms/s of the hallway scene. For example 780's are typically benchmarked around 10-20% less than 980's when you look around in the net (same GB). So I would create an Afterburner profile that gives me 10-20% less Ms/s. Is this valid?

http://www.videocardbenchmark.net/gpu.p ... ce+GTX+980
http://www.videocardbenchmark.net/gpu.p ... ce+GTX+780