The RX 6000 series Owners' Club

[turbogear]

To tell you the exact pads to use is not easy without knowing how well they compress compared to the original ones, however i have put 2 links below one to a set of what i belive are soft 1.5mm thermal pads, the other link is to thermal putty which is what i would use if i had lost the original thermal pad as with thermal putty you should not get a bad mount as a result of incorrect thermal pads which is just one factor in a obtaining a good and successful mount

EC360® BRONZE 8W/mK Thermal pad

Quantity 2+ 4+ 8+ 16+ 32+ 50+ 100+ 200+ 500+ Discount 6% 12% 15% 21% 26% 31% 35% 38% 40% The EC360® BRONZE series presents the beginners variant of high-performance thermal pads, which are on eye-level with premium thermal pastes. The pads have a high thermal conductivity of 8 W/mK and are...

www.coolsierra.com

K5-PRO

K5-PRO Thermal Paste

www.computer-systems.gr

I am not too sure if the Red Devil uses 1.5mm pads.
The 6900XT Liquid Devil uses 1mm pads under the EK Water block that is factory fitted.

I can recommend the Alphacool Rise Ultra soft (7 w/mK), but these come in 0.5mm, 1mm, 2mm and 3mm only. I have not seen 1.5mm version of these.

Alphacool Rise Ultra Soft Wärmeleitpad 7W/mk 50x50x2mm

Die Rise Ultra Soft sind Alphacool‘s Performance orientierte Lösung im Bereich der Wärmeleitpads, da man sie aufgrund ihrer herausragenden Eigenschaften fast mit einer Wärmeleitpaste vergleichen kann. Die Rise Ultra Soft Wärmeleitpads...

www.aquatuning.de

Actually these are comparable to the original Liquid Devil pad from PowerColor. These are very soft almost like a thermal past and have only 20 Shore OO as hardness.
As show in my previous post, I am using these now on my Liquid Devil.

The first time I opened my card to apply Liquid Metal, some of the original pads got destroyed when I took the cooler apart. Therefore it is always good to have some backup pads when opening the cooler.
Sometime they are partially stuck with the component and partial with heatsink so part will break apart when opening the cooler.

At that time Alphacool did not offer the Rise Ultra Soft. They offered only Alphacool Ultra Soft (3 w/mK) which also has same hardness but less than half Thermal conductivity of the Rise Ultra Soft.
With Rise I have almost 4-5°C better VRAM temperatures.

Note I have flashed a special bios onto my Liquid Devil. It applies more voltage to VRAM thus producing more heat which add a few degrees extra of heat to the VRAM.
That is why I wanted to test the Rise Ultra Soft and I see this difference in temperatures now.

first couple timespy runs with my 6700XT (why is it not even in the GPU database?, XFX Qick 319 Black Edition)
i am K0NG__
View attachment 210364

That is the magic of the 21.7.2 driver.
People on Hardwareluxx has hit 25K Time Spy score on 6900XT.

[Sammelthread] - Offizieller AMD [[ RX6700 // RX 6700XT // 6750XT // X6800 // 6800XT // 6900XT // 6950XT]] Overclocking und Modding Thread [[ Wakü - Lukü - LN2]]

Bislang nur gehört das TS etreme auch paar Prozent zugelegt haben soll. Über die letzten Treiber ging pr bei mir aber auch leicht hoch, denke das wird diesmal auch wieder klappen, aber Wunder zu erwarten sind da denke ich nicht^^

www.hardwareluxx.de

I need to try to tune further to go in the direction of 25K.
As my previous post from yesterday, I am at 24.2K at the moment, but there is more room for improvement.
I need to find a good setting for my 5900X and RAM to go closer to 25K.
Time Spy seems to like Oced CPU and Memory.

Either I need to get CTR2.1 stable or do manual OC in the bios.

My problem is the time at the moment and I have too less of it for tuning.
You know summer vacations started over here and kids need all the free time I have.

 

[Kabouter Plop]

Timespy still crashes with no result produced sometimes, but scored even more now like its crazy if went from 18k to 19k now whats next 20k ?

 

[Law67]

I am not too sure if the Red Devil uses 1.5mm pads.
The 6900XT Liquid Devil uses 1mm pads under the EK Water block that is factory fitted.

I can recommend the Alphacool Rise Ultra soft (7 w/mK), but these come in 0.5mm, 1mm, 2mm and 3mm only. I have not seen 1.5mm version of these.

Alphacool Rise Ultra Soft Wärmeleitpad 7W/mk 50x50x2mm

Die Rise Ultra Soft sind Alphacool‘s Performance orientierte Lösung im Bereich der Wärmeleitpads, da man sie aufgrund ihrer herausragenden Eigenschaften fast mit einer Wärmeleitpaste vergleichen kann. Die Rise Ultra Soft Wärmeleitpads...

www.aquatuning.de

Actually these are comparable to the original Liquid Devil pad from PowerColor. These are very soft almost like a thermal past and have only 20 Shore OO as hardness.
As show in my previous post, I am using these now on my Liquid Devil.

The first time I opened my card to apply Liquid Metal, some of the original pads got destroyed when I took the cooler apart. Therefore it is always good to have some backup pads when opening the cooler.
Sometime they are partially stuck with the component and partial with heatsink so part will break apart when opening the cooler.

At that time Alphacool did not offer the Rise Ultra Soft. They offered only Alphacool Ultra Soft (3 w/mK) which also has same hardness but less than half Thermal conductivity of the Rise Ultra Soft.
With Rise I have almost 4-5°C better VRAM temperatures.

Note I have flashed a special bios onto my Liquid Devil. It applies more voltage to VRAM thus producing more heat which add a few degrees extra of heat to the VRAM.
That is why I wanted to test the Rise Ultra Soft and I see this difference in temperatures now.



That is the magic of the 21.7.2 driver.
People on Hardwareluxx has hit 25K Time Spy score on 6900XT.

I need to try to tune further to go in the direction of 25K.
As my previous post from yesterday, I am at 24.2K at the moment, but there is more room for improvement.
I need to find a good setting for my 5900X and RAM to go closer to 25K.
Time Spy seems to like Oced CPU and Memory.

Either I need to get CTR2.1 stable or do manual OC in the bios.

My problem is the time at the moment and I have too less of it for tuning.
You know summer vacations started over here and kids need all the free time I have.

I measured the original thermal pads on my Red Devil with my digital calipers @1.5mm when i took it part to to apply the LM, its the same board on the Powercolor RX 6800 XT as the Powercolor Rx 6900 XT only difference being the RX 6800 XT does not have a third 8-Pin molex, i don't know about the Liquid Devil as i have never stripped one

 

[turbogear]

Timespy still crashes with no result produced sometimes, but scored even more now like its crazy if went from 18k to 19k now whats next 20k ?

One of the users at Hardwareluxx made a graph showing the Time Spy improvement with time since launch of RDNA2.
This time AMD has some strange magic ongoing and they are still finding lot of Performance every new drive launch.

[Sammelthread] - Offizieller AMD [[ RX6700 // RX 6700XT // 6750XT // X6800 // 6800XT // 6900XT // 6950XT]] Overclocking und Modding Thread [[ Wakü - Lukü - LN2]]

Von den Temparaturen träume ich , Morgens um 06.00h sind hier 25C Optimal wenns regnet und dannmorgens viel Tau liegt. Hatte jetzt einen Run mit Flackern und 22118 Score. Da scheint irgendwas einzubrechen.

www.hardwareluxx.de

Fine wine principle seems to be working for them.
I lost the track where is actually RTX 3090 now day with performance. Did Nvidia also find some nice performance also or only AMD?

I measured the original thermal pads on my Red Devil with my digital calipers @1.5mm when i took it part to to apply the LM, its the same board on the Powercolor RX 6800 XT as the Powercolor Rx 6900 XT only difference being the RX 6800 XT does not have a third 8-Pin molex, i don't know about the Liquid Devil as i have never stripped one

Okay.
It could be there is a difference between original PowerColor cooler and Liquid Devil cooler. The Liquid Devil's water block is made by EK for PowerColor.
EK almost always use 1mm pads for the VRAM and VRM on it's blocks. That could be the reason why Liquid Devil is using 1mm and the other cooler from PowerColor using 1.5mm.
Advantage with 1mm over 1.5mm distance is you have less thermal resistance due to only needing a thinner pad but it also mean more strict tolerances control is needed in the manufacturing process than where you have 1.5mm distance between the cooler and component.
Less tolerance allowed means higher manufacturing price.

Timespy still crashes with no result produced sometimes, but scored even more now like its crazy if went from 18k to 19k now whats next 20k ?

Strange.
Usually I have Time Spy crash only if I have some unstable setting.
This is weird that you have this phenomena on default settings.

It could be that your card is trying to pull more power than is allowed by the default setting and thus results in crash.
I had sometimes some issues like that but on OCed card and there I was able to stabilize it by applying more power with MTP but that I think should not be happening on default settings.

 

[Kabouter Plop]

I usually force radeon sharpening globally and set fps limit globally to 400 least, 236 once my samsung g9 returns hopefully new one soon, old one been thru 4 dead pixels 1 fixed it self 2 fully dead green pixels + 1 new half dead pixel appeared i decided if had enough of this monitor so demanded to exchange it now they wanna repair it which not possible you cant fix dead pixels unless you think smashing screen is fixing it but that just makes it worse.

 

[Felix123BU]

Timespy still crashes with no result produced sometimes, but scored even more now like its crazy if went from 18k to 19k now whats next 20k ?

I am at 20657 with my 6800XT
AMD Radeon RX 6800 XT video card benchmark result - AMD Ryzen 7 5800X,Gigabyte Technology Co., Ltd. B550 AORUS PRO (3dmark.com)

I usually force radeon sharpening globally and set fps limit globally to 400 least, 236 once my samsung g9 returns hopefully new one soon, old one been thru 4 dead pixels 1 fixed it self 2 fully dead green pixels + 1 new half dead pixel appeared i decided if had enough of this monitor so demanded to exchange it now they wanna repair it which not possible you cant fix dead pixels unless you think smashing screen is fixing it but that just makes it worse.

Should never crash at pure stock settings, meaning no MPT, no OC, pure default settings, but once you do MPT and OC it gets unstable fast, though to find working OC settings

 

[turbogear]

The top 10 spots on Time Spy are still dominated by 3090.

But I think lot of people from Hardwareluxx did not report their scores yet.
These Enthusiast are still tuning their cards like 24/7 without sleep since yesterday and I think soon there will more 25K range scores from 6900XT on this chart.

I am at 20657 with my 6800XT
AMD Radeon RX 6800 XT video card benchmark result - AMD Ryzen 7 5800X,Gigabyte Technology Co., Ltd. B550 AORUS PRO (3dmark.com)


Should never crash at pure stock settings, meaning no MPT, no OC, pure default settings, but once you do MPT and OC it gets unstable fast, though to find working OC settings

You mean 22 891 GPU score.
20657 GPU score would have been boring at this point.

 

[Felix123BU]

The top spot on Time Spy are still dominated by 3090.

But I think lot of people from Hardwareluxx did not report their scores yet.
These Enthusiast are still tuning their cards like 24/7 without sleep since yesterday and I think soon there will more 25K range scores from 6900XT on this chart.

View attachment 210369

Top 4 at least of those are done on Liquid Nitrogen, on water they are similar to a 6900XT, I shiver at the thought of watts one needs to run a 3090 at 2.5ghz

The top 10 spots on Time Spy are still dominated by 3090.

But I think lot of people from Hardwareluxx did not report their scores yet.
These Enthusiast are still tuning their cards like 24/7 without sleep since yesterday and I think soon there will more 25K range scores from 6900XT on this chart.
View attachment 210369



You mean 22 891 GPU score.
20657 GPU score would have been boring at this point.

Yup, thought @Kabouter Plop meant 19k overall, and yes, from first Gpu score Time Spy attempt of 18.5k (oc-ed) to almost 23k is about the amount of driver improvements over time (plus some CPU oc), much more than I would have expected. Does not all translate to extra real game performance, but that also grew nicely since day one.

 

[turbogear]

Top 4 at least of those are done on Liquid Nitrogen, on water they are similar to a 6900XT, I shiver at the thought of watts one needs to run a 3090 at 2.5ghz

People at Hardwareluxx are also becoming very creative.
If you go and read that forum and see temperature reports from Time Spy runs.
Ideas like bucket of Ice for submersing the radiator seem to be common.

Some even use devices like Chiller:

Radiatoren

Das größte Sortiment an Kupfer- und Aluminiumkühlern inklusive Zubehör finden Sie nur bei uns

www.aquatuning.de

 

[Felix123BU]

People at Hardwareluxx are also becoming very creative.
If you go and read that forum and see temperature reports from Time Spy runs.
Ideas like bucket of Ice for submersing the radiator seem to be common.

Some even use devices like Chiller:

Radiatoren

Das größte Sortiment an Kupfer- und Aluminiumkühlern inklusive Zubehör finden Sie nur bei uns

www.aquatuning.de

I see, taking a trick out of Intel handbook of gaining extra performance....Intel 5 Ghz 28 core

Best take on that: 28 Cores of Bulls#!t - Intel's "5GHz" Parlor Trick - YouTube

 

[jesdals]

Hmm these standard fan curve settings in the AMD drivers seems stupid - changeing the fancurve to a manual setting like this

Made my hotspot temps go to a record low during an our of gameing

Both memory max and GPU hot spot is more than 8c lower than the default profile. It seems stupid that its not a low noise option instead of a limiting factor while gameing

 

[Kabouter Plop]

Pink screen in wow can be fixed by not using in game msaa together with renderscale as well, honestly don't think if ever used both at same time before in past.
playing around with pink screen

Playing around with ray traced shadows

Anything above fair will be glitchy

 

[kiddagoat]

Since getting my 6900XT figured out, I am really enjoying it now. I have been using it to do some AI Upscaling with DVDFab with my anime DVD collection. It is a bit faster than my 2080 Super and can't complain about the quality.

I am able to keep it stable with a min clock of 2600Mhz and a max of 2700Mhz.

 

[Valantar]

Spent a bit of time exploring undervolting and underclocking my 6900 XT Liquid Devil Ultimate today. There's some interesting behaviour to be found here, especially around what seems to be a pretty hard voltage/clock scaling step, where the chip requires a significant boost in voltage to be stable at all.

At stock, my GPU is a bit limited by cooling (single slim 280mm rad for the whole system), but runs ~2550MHz when not thermally limited (i.e. before the liquid reaches steady state) at stock, i.e. 330W and I assume 1200mV (that's what Wattman defaults to, at least), with the default range of 500-2614MHz. (It steps down to ~2.4GHz when it heats up, maintaining 330W GPU power.) Undervolting at stock is essentially a no-go - even 1175mV isn't Time Spy stable.* And that applies when stepping down to quite a lot lower clocks - even 2100/2300 isn't stable at 1175mV.
My stock Time Spy scores are ~18900 total/21500 graphics. (That's with a 5800X.)

So I decided to start at the other end: rather than starting at stock and stepping downwards as I go, I chose an arbitrary low clock and voltage setting to see if it was stable - I picked 1600/1800 1000mV. And it was. So was 975mV, and 950mV. For now I haven't tested any lower. I didn't see much power scaling between 1V and 950mV - both reported ~150-160W GPU power draw during Time Spy. Performance was pretty crappy though, at 15500/16700.

So I decided to start stepping clocks back upwards, seeing how far I could go at 950mV. 1700/1900? Check. 1800/2000? Check. 1900/2100? Nope. Not at 975 or 1000mV either. But 1850/2050 at 950mV is TS stable, and scores ~17000/18600, all while consuming about 180W, +/- 10W.

One sort of interesting thing (at least to me): whatever I set my max clock to, it seems to sustain ~60MHz less than that, rock solid. 1800=1740, 1900=1840, 2000=1940, 2050=1990.

To summarize: for a ~11%/14% performance loss (total/GPU scores), I've cut power draw by ~42% (assuming sustained 330W/190W draws). That's a win in my book. At the very least I've got a very attractive-looking low power draw profile for games that don't need all the power available from this GPU.

I'll make some tests to see if anything lower than 950mV is feasible, as well as exploring if there are any intermediate stable settings between that range and 1.2V. But for now, I'm pretty happy with the results of about an hour's work.


*note (and this applies to all my testing): I run dual monitors, and as I'm looking for something suitable for daily use I'm testing with that, which does seem to hurt stability somewhat).

Edit: I've been using Aquasuite to monitor my power and thermals, and it seems their "GPU Core" power reading is what AMD calls "GPU Power", which seems to be what HWinfo calls either GPU ASIC power or TGP Power. Either way, it should be full-board power, not just the GPU itself.

Edit2: UV/UC is completely stable from playing a couple of hours of Metro Exodus, and performance is not noticeably changed. Power draw in-game fluctuates between 110-130W in outdoor areas to 160-170W in indoor areas. And my GPU is happily chugging along at ~45°C rather than 60-ish, and the CPU is much cooler too as the water in the loop is much cooler. Very happy with these results.

 

[Butanding1987]

You shouldn't have bought a 6900 XT Liquid Devil if you're trying to save power. Underclocking is forbidden on this forum — just ask @turbogear, who's now looking at blasting his Liquid Devil Ultimate with all the voltage that it needs.

 

[turbogear]

You shouldn't have bought a 6900 XT Liquid Devil if you're trying to save power. Underclocking is forbidden on this forum — just ask @turbogear, who's now looking at blasting his Liquid Devil Ultimate with all the voltage that it needs.

You are right.
Underclocking is nothing for me. For me that would mean Liquid Devil would be like having Ferrari and driving on 3 cylinders with top speed limited to 100km/h.

 

[Valantar]

You shouldn't have bought a 6900 XT Liquid Devil if you're trying to save power. Underclocking is forbidden on this forum — just ask @turbogear, who's now looking at blasting his Liquid Devil Ultimate with all the voltage that it needs.

You are right.
Underclocking is nothing for me. For me that would mean Liquid Devil would be like having Ferrari and driving on 3 cylinders with top speed limited to 100km/h.

Weeeeeell .... what counts as pushing things to the extreme is highly context dependent, after all. IMO, my setup goes further than theirs @turbogear has a 127-liter case with 6x120mm (likely thicker than mine) radiators. I have a 14.7-liter case with 2x140mm 30mm radiators. So their radiator-to-case-volume ratio isn't particularly impressive, and you could fit a theoretical 8.7 of my systems inside of theirs (though in reality it's likely more like 4-5 - the measurements sadly don't quite match up ). Still, the LDU is rather extreme for my setup even at stock - though the case and cooling do keep up admirably IMO. To me, maxing out efficiency is just as interesting as maxing out performance. Or even more, really - brute-forcing higher performance isn't particularly fun, and there aren't many of us with the time and expertise to do proper high end overclocking. I'll stick to watching Buildzoid do his thing

And lastly:

 

[Butanding1987]

I'll stick to watching Buildzoid do his thing

Buildzoid will roast you for owning a Biostar motherboard.

 

[Valantar]

Buildzoid will roast you for owning a Biostar motherboard.

Ah, I see I haven't updated my system specs. That one lives in my NAS now. In my defense, it was the only AM4 ITX motherboard in existence at the time. FWIW, it was pretty crap (rather unstable, refused to run RAM above 2933, had those weird 1st-gen Ryzen random shutdowns, for some reason my NVMe SSD ran crazy hot), but it's been serving me well for the past few months in my NAS (39 days of uptime and counting). Even handles ECC UDIMMs nicely.

 

[Kabouter Plop]

Probably little bit off-topic but my 2e samsung g9 arived, even bigger downgrade with 15+ dead pixels, how people even manage to get new screens these days with 0 issues

 

[GerKNG]

anyone with a 6700XT that can not run fast timings at all?
i have two 6900XT both perform the best at ~ 2100 Fast.
my 6700XT Qick 319 Black (highest end XFX bin) can not run ANY memory clock with fast settings. but full 2150 without. (Fast settings = very hard lockups, bluescreens. for example: grey screen, a few blue dots --> reboot. game locks up with an extremely pixelated screen (in new world and PUBG within minutes) ending in a hard crash - reboot.)

 

[Garlic]

anyone with a 6700XT that can not run fast timings at all?
i have two 6900XT both perform the best at ~ 2100 Fast.
my 6700XT Qick 319 Black (highest end XFX bin) can not run ANY memory clock with fast settings. but full 2150 without. (Fast settings = very hard lockups, bluescreens. for example: grey screen, a few blue dots --> reboot. game locks up with an extremely pixelated screen (in new world and PUBG within minutes) ending in a hard crash - reboot.)

My 6700xt nitro can run at fast timings even at 2150, it's just that at that point it performs worse than stock. Increasing the voltage via mpt does not fix the problem for me and I just run 2150 with normal timings. (Also should't the highest bin be the Merc 319?)

 

[turbogear]

anyone with a 6700XT that can not run fast timings at all?
i have two 6900XT both perform the best at ~ 2100 Fast.
my 6700XT Qick 319 Black (highest end XFX bin) can not run ANY memory clock with fast settings. but full 2150 without. (Fast settings = very hard lockups, bluescreens. for example: grey screen, a few blue dots --> reboot. game locks up with an extremely pixelated screen (in new world and PUBG within minutes) ending in a hard crash - reboot.)

I had issues before with my 6900XTU Liquid Devil Ultimate. It could not run memory OC at all independent of Fast Timing or not.
To my surprise this is somehow limitations depending on the bios settings that we cannot influence.

I have moved since some time to new XTXH-LC bios and now my card memory runs at 2310MHz at Fast Time level 2.
I had to flash this with a special programmer.
I got some help from Hardwareluxx members.




Here is my latest Time Spy Score:


It is at place 5 in overall score for 6900XT and 5900X combination.
This was impossible with original bios where my memory would not OC at all.

I am still trying to find some more points.
The guys above me in this list mostly have even better cooling solutions.
For example I know Holzmann from Hardwareluxx.
He put some air conditioning next to his Mo-Ra (https://shop.watercool.de/MO-RA3-420-LT-black_1) cooling radiator to reach that score.
I don't own anything like that and don't plan to do so.

 

[GerKNG]

My 6700xt nitro can run at fast timings even at 2150, it's just that at that point it performs worse than stock. Increasing the voltage via mpt does not fix the problem for me and I just run 2150 with normal timings. (Also should't the highest bin be the Merc 319?)

well i can run the memory at 2150 with no issues (it even scales properly)
but fast timings (even at stock) results in extremely hard crashes. (barely any load = (for example) grey screen with blue circles on it, black screen, reboot)
the GPU runs at around 2800-2830 Mhz (2860Mhz 1150mv in Wattman)

 

[Garlic]

well i can run the memory at 2150 with no issues (it even scales properly)
but fast timings (even at stock) results in extremely hard crashes. (barely any load = (for example) grey screen with blue circles on it, black screen, reboot)
the GPU runs at around 2800-2830 Mhz (2860Mhz 1150mv in Wattman)

Hmm, interesting, maybe some mem chips just doesn't like fast timings. Mine does do fast 2150 but there artifacts and stuff, not to mention that it losses performance at that clock. Also whats your temps like with that oc? My 6700xt when oced and running furmark can reach 100 junction and 280 watts power draw