Originally Posted By: mlord
I suppose it could have something to do with the NVIDIA card/driver switching between performance/thermal levels on the fly. A newer/faster card might never need to switch.


Yeah. I considered that: I had the nvidia settings GUI open while I was investigating this on the old card; there weren't obvious thermal spikes or anything, and it didn't _seem_ correlated with the performance boost stuff. I say _seem_, because the sampling interval on the performance display in the GUI is so long as to be worthless for this kind of thing.
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-- roger