Memory speed incorrectly read - Quadro K600

[stampedeadam]

Hi, I just wanted to report that the memory speed of my Quadro K600 is read as 223mhz instead of 891mhz - 1/4 of the speed. Memory bandwidth is also 1/4 of what it should be (28.5 gb/s)

My 1080ti which is installed in the same system reports the correct memory bandwidth/speed:

Thanks

 

[W1zzard]

Interesting, could you upload the bios and paste the link?

Same memory Clock is shown on gpuz 2.16.0?

 

[stampedeadam]

Interesting, could you upload the bios and paste the link?

Same memory Clock is shown on gpuz 2.16.0?

Hi, yes, same under 2.16.0:

GPUZ won't allow me to upload the BIOS to techpowerup online database because it says there's a duplicate already but I have uploaded it here:

https://ufile.io/ud8cn

Thanks

 

[W1zzard]

So I looked into this, your BIOS reads correctly as 891 MHz memory speed, this works in GPU-Z, too, when no driver is installed.

When the driver is installed, GPU-Z asks the driver "hey, what's the memory clock?", and the driver apparently says "223 MHz".

I suspect this is a bug in NVIDIA's drivers, do reach out to them, they are usually very fast to respond and look into things.

https://www.nvidia.com/object/support.html
-> bottom right, "Ask us a question, send us an email"

Please let me know how it goes