Cheers Phoenix. I guess I won't bother flashing bios for re sizable bar at
present then.
Theres no apparent correlation between power limit being reported in
afterburner, and reported gpu utisation, which leads me to think that a power
usage spike as seen in AB doesn't necessarily represent a real constraint.
Surely if the card can't draw enough voltage it should downclock, and it
appears that isn't happening?
If I run the Heaven benchmark the power usage stays fixed at '1' throughout,
but with gpu utilisation at 99% and clock speed around 1850.
All said, I don't really know how AB measures this, or how accurate it is.
Roke
Get Outlook for Android<https://aka.ms/ghei36>
Get Outlook for Android<https://aka.ms/ghei36>
________________________________
From: 56raf_firebirds-bounce@xxxxxxxxxxxxx
<56raf_firebirds-bounce@xxxxxxxxxxxxx> on behalf of 56RAF_phoenix
<phoenix@xxxxxxxxxxxxxxxxxxxx>
Sent: Saturday, May 1, 2021 6:03:04 PM
To: 56raf_firebirds@xxxxxxxxxxxxx <56raf_firebirds@xxxxxxxxxxxxx>
Subject: [56raf_firebirds] Re: Resizable BAR slows Il2
Having flashed the VBIOS to do this, it looks like it's all less power limited
than it was (though none of my settings are the same as my post a couple of
weeks ago, so it's a bit subjective). I suspect the original VBIOS was a "low
temperature" or "low noise" one.
I had the devil of a job finding what to flash it with because the 3080 I have
is a fairly early MSI card that has a marketing name that is UK specific.
The MSI update tool came to the rescue and I can see why MSI recommend it,
because the danger of bricking the card is high if you get the wrong VBIOS.
Triangles show the power limited renders. I've roughly shifted the time origin
to match the SYN_Vander start time.
56RAF_phoenix
On 01/05/2021 15:42, 56RAF_phoenix wrote:
The attached graph shows that enabling Resizable BAR for the CPU-Graphics
memory communication slows the il2 framerate on the SYN_Vander benchmark and my
current graphics settings.
56RAF_phoenix[cid:part1.6B2C070C.D2DFA229@parkersathome.org.uk]