The Radeon RX 6900/6950 XT Owners Thread.

LtMatt · 16 Feb 2021 at 06:59

astrosquirrel said:
Much appreciated testing. Thank you.

VRAM performance findings also confirmed and validated by a user on overclock.net forum folks.

Dontrocktheboat · 16 Feb 2021 at 07:54

John Mike said:
Getting ready .. Waiting for the water block..

how much did that lot set you back? including the block?

6900xt red devil?

snips86x · 16 Feb 2021 at 11:16

Could someone advise if I change my 6900XT out to test another AMD card, will the radeon sotware retain my custom profiles when I switch back?

LtMatt · 16 Feb 2021 at 11:21

snips86x said:
Could someone advise if I change my 6900XT out to test another AMD card, will the radeon sotware retain my custom profiles when I switch back?

Application profiles? I think so yes.

snips86x · 16 Feb 2021 at 11:23

LtMatt said:
Application profiles? I think so yes.

My brother found his old 7970, I just want to make sure it's functional before selling it but don't want to loose my game profiles, if I have to set them back up it's not the end of the world but would prefer to avoid doing that lol.

LtMatt · 16 Feb 2021 at 11:35

snips86x said:
My brother found his old 7970, I just want to make sure it's functional before selling it but don't want to loose my game profiles, if I have to set them back up it's not the end of the world but would prefer to avoid doing that lol.

I think there might be an option to export settings or something like that in the system menu of Radeon Software just in case. I think this might save the profiles, but I cannot guarantee it.

I've never actually used it myself as I only ever have a handful of games installed at any one time. My internet is slow as hell anyway.

EsaT · 16 Feb 2021 at 21:33

LtMatt said:
Hey.

I created some 6900 XT GPU Tuning profiles that you might like to try. You can just load them into GPU Tuning and away you go.

2300Mhz/2012Mhz 1.025v Power Saving 255W
2400Mhz/2112Mhz 1.050v Balanced 275W
2500Mhz/2112Mhz 1.100v Performance 300W

https://1drv.ms/u/s!AmfBfrWrCDQLuUkWrQHzxka5d96l?e=7npLlo

What kind power draw default Power Save preset gives?
(in Vega 64 that worked really nicely for keeping heat down/improving power efficiency)
Or is it just better to use some voltage offset with some "safe" value like you mentioned in 6800 XT thread.

With power draw of modern cards will certainly have to consider can their whole card power draw be tuned down toward 200W level without major performance penalty especially for when weather gets warmer.
These around -20C outside temps just don't hold to summer...

heartburnron · 16 Feb 2021 at 21:39

So I treated myself to a case upgrade, the Phanteks Enthoo 719 arrived this afternoon. I intend to mount my red devil vertically and understood I needed to order a riser cable separately, which I've done but it's seems I also needed to order the vertical mounting bracket, which I haven't. However I still haven't solved the mystery of what the "GPU stand" provided with the Red Devil is for. Can any fellow Red Devil owners enlighten me? I think I can maybe use it as support to mount the card vertically in the case but is that what it's actually for or is to combat GPU sag when horizontal?

Here are pictures of the two pieces of kit and instructions for those who don't have the card. All thoughts and opinions welcome...

Illuminist · 16 Feb 2021 at 23:41

heartburnron said:
So I treated myself to a case upgrade, the Phanteks Enthoo 719 arrived this afternoon. I intend to mount my red devil vertically and understood I needed to order a riser cable separately, which I've done but it's seems I also needed to order the vertical mounting bracket, which I haven't. However I still haven't solved the mystery of what the "GPU stand" provided with the Red Devil is for. Can any fellow Red Devil owners enlighten me? I think I can maybe use it as support to mount the card vertically in the case but is that what it's actually for or is to combat GPU sag when horizontal?

Here are pictures of the two pieces of kit and instructions for those who don't have the card. All thoughts and opinions welcome...

It's an anti sag stand, you basically just hold the card up with it, but if you can use it to hold the card vertical then go for it

heartburnron · 16 Feb 2021 at 23:54

Illuminist said:
It's an anti sag stand, you basically just hold the card up with it, but if you can use it to hold the card vertical then go for it

Sweet. That's what I thought initially but I thought I read somewhere if was for mounting vertically which created some doubt. I'll see if I can make it do the job then. Cheers.

LtMatt · 17 Feb 2021 at 04:44

EsaT said:
What kind power draw default Power Save preset gives?
(in Vega 64 that worked really nicely for keeping heat down/improving power efficiency)
Or is it just better to use some voltage offset with some "safe" value like you mentioned in 6800 XT thread.

With power draw of modern cards will certainly have to consider can their whole card power draw be tuned down toward 200W level without major performance penalty especially for when weather gets warmer.
These around -20C outside temps just don't hold to summer...

The rough power draw is listed at the end of each profile.

FrankJH · 17 Feb 2021 at 13:25

@Gibbo was trying to do the right thing but got no response from sending a webnote.
Placed an order last Thursday lunchtime (OC4216169) including 6900XT that have since gone out of stock - just wondering the status (there were 5 showing in stock when I ordered)
Appreciate the warehouse is working incredibly hard - but even so a little surprised I havent heard anything for nearly 5 full working days.
Thanks

snips86x · 17 Feb 2021 at 14:44

@LtMatt I've just tested your custom profile for 'performance' and the AMD software crashed. Do you recommend any particular adjustments to get it stable? I'm assuming it'll be either power or voltage related.

If this was nVidia i could probably work it out but it's been a number of years since I had an AMD card and I don't know how touchy they are to changes.

LtMatt · 17 Feb 2021 at 14:48

snips86x said:
@LtMatt I've just tested your custom profile for 'performance' and the AMD software crashed. Do you recommend any particular adjustments to get it stable? I'm assuming it'll be either power or voltage related.

If this was nVidia i could probably work it out but it's been a number of years since I had an AMD card and I don't know how touchy they are to changes.

You probably need more voltage mate. Try bumping the voltage slider up by 10. Eg, if it's set to 1050, set it to 1060.

Make sure the power limit is at +15% also as I can't remember what I had it set to in the profiles, it may have been 0.

snips86x · 17 Feb 2021 at 15:34

LtMatt said:
You probably need more voltage mate. Try bumping the voltage slider up by 10. Eg, if it's set to 1050, set it to 1060.

Make sure the power limit is at +15% also as I can't remember what I had it set to in the profiles, it may have been 0.

Power limit was set to 0, what's the safe voltage on the 6900XTs?

Edit: Up to 1055mv but it's still not stable with +15 power. Have left it for now.

Best result I've had in TimeSpy is:
Balanced - 17602/12816 - 16668
Rage Preset - 17826/12768 - 16826

LtMatt · 17 Feb 2021 at 16:03

snips86x said:
Power limit was set to 0, what's the safe voltage on the 6900XTs?

Edit: Up to 1055mv but it's still not stable with +15 power. Have left it for now.

Best result I've had in TimeSpy is:
Balanced - 17602/12816 - 16668
Rage Preset - 17826/12768 - 16826

You probably need more. Try +25. Safe voltage is up to 1175v.

EsaT · 17 Feb 2021 at 18:14

LtMatt said:
The rough power draw is listed at the end of each profile.

With AMDs reporting multiple different values is that whole card's power draw or only GPU?
In later case it would be still ~300W for whole card.

LtMatt · 17 Feb 2021 at 18:24

EsaT said:
With AMDs reporting multiple different values is that whole card's power draw or only GPU?
In later case it would be still ~300W for whole card.

PPT power metric as reported by HWINFO64. I believe it reports everything, as core power metric is lower, but you would need to verify with developer of HWINFO64.

EsaT · 17 Feb 2021 at 18:52

LtMatt said:
PPT power metric as reported by HWINFO64. I believe it reports everything, as core power metric is lower, but you would need to verify with developer of HWINFO64.

"Slightly" hard to find anything concretic about what it actually measures on graphics cards.
If it's anything like for CPUs, it's package power with also others parts of GPU chip besides actual GPU core.
(instead of whole board power)

Do you remember what it showed with card at defaults?
With good number of reviews measuring card only power draw (instead of whole PC) that could be used to correlate, if it includes also memory and VRM.

LtMatt · 17 Feb 2021 at 19:01

EsaT said:
"Slightly" hard to find anything concretic about what it actually measures on graphics cards.
If it's anything like for CPUs, it's package power with also others parts of GPU chip besides actual GPU core.
(instead of whole board power)

Do you remember what it showed with card at defaults?
With good number of reviews measuring card only power draw (instead of whole PC) that could be used to correlate, if it includes also memory and VRM.

Best to ask the developer. HWiNFO Forum

Core power metric in HWINFO64 was over 50W lower than PPT. PPT was the highest reporting power metric so i use that for tracking power draw.

Default depends on the GPU and BIOS, as each one has different power limits. These profiles were originally created using the MBA version.

Stock power draw 255W. +15% power limit was 293W.