New 9070xt - do they reduce the PCI-Express speed when idle?

[Spudgun]

I've upgraded from a 3080 today and everything has gone very smoothly and performance is exactly where it should be when compared to a range of online benchmark tests.

However, I've noticed that the PCI-Express speed reported by GPUZ doesn't reduce when the card is idle like my 3080 did and the card always seems to be at 5 x 16. Is this something that doesn't happen on AMD gpus or have I missed something?

I've checked windows power settings and that is set at balanced and I'm on the latest adrenaline drivers.

It is more than 20 years since I last had an AMD GPU so apologies if this is a really basic question, but I'm so used to seeing my NVIDIA card clock down to pci 1 speeds when idle that I kind of expected my new AMD card to do the same, so please feel free to point out something very basic that I might be missing.

 

[Spudgun]

From a little research on Google, every GPU-Z screenshot I can find of a 9070 XT has it reporting its maximum bus speed, so I don't think there's anything wrong with your setup. As for why, it may simply be a reporting error in GPU-Z and it's not reading the dynamic speed correctly, or AMD may choose not to reduce the bus speed for some reason (latency or stability benefits perhaps).

Thank you very much for that information, it is greatly appreciated. I think my last AMD card was a Radeon 9700 in 2003, so I'm a little out of touch with team red!

 

[Spudgun]

Mine goes down to 1.1 when idle.

I am on X570 so only PCI-E 4 and on adrenalin 25.9.1 and balanced power settings in Windows.

Interesting, thank you - I am on X670e and mine never changes from 16 5.0 on a balanced power profile in Windows running Adrenaline 25.12.1. My previous 3080 was only PCI-E 4 and that used to drop back to 16 1.1 when Idle on the same board

 

[Spudgun]

I've reset the windows power settings back to their default values for the balanced profile and now it does drop back to 16 1.1 when idle, but the minute I fire my browser up (Brave) it goes back to 16 5.0. However, from the post above, this sounds fairly normal.