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Why did my memory clock get halved?

Cyber Akuma

Cyber Akuma

Gawd
Joined
Jan 3, 2009
Messages
663
Ok, I admit I am not that well versed on all the more intricate details of 3D cards, so I might just be worrying about nothing.

Anyway, I finally updated my drivers that were pretty old by now, and noticed that the overclocking app that game with my card (EVGA Precision X) had a significant update so I updated that as well.

Last time I did my performance was shot because it undid the overclock and set my card to single instead of SLI, so I did my benchmarks again to test it, but when I was looking at the comparison I noticed that my memory core clock was now listed as half of what it used to be listed as. Is it just being measured differently now or something or did I re-apply my settings wrong?

GPU_Core_Speed.png
 
Your video card uses GDDR5 memory. That means it uses version 5 of the GDDR spec. GDDR means Graphic Double Data Rate. What you are seeing is completely normal; monitoring apps like GPU-Z and Precision X will only report the normal, undoubled data rate.
 
I would just make sure that your overclocking apps are set to their defaults before measuring, use GPU-Z as well if you're extra paranoid, but there shouldn't be anything that actually changed physically. The driver clocks down the memory during low load (2D) scenarios as well.
 
What confuses me though is that the same application is reporting this, unless 3D Mark itself changed the way it records your memory clock, or the drivers now report normal instead of doubled back after I upgraded them. If different applications were reporting the normal or doubled clock that would make sense.
 
You mentioned having two cards, maybe one is downclocking while not in use (2d mode?)
 
1752 * 2 is 3504, so i can't imagine it being anything else other than the software not doubling it.
 
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