Testing undervolting with my 5700XT

[Taraquin]

After installing newest drivers I had to reapply afterburnersettings, radeon settings tries to overwrite. Work fine except after reapplying. Morepowertool is broken with latest drivers :/

 

[potato580+]

Did a few test runs today with my 5700XT reference design in Shadow of the tomb raider with different voltagesettings etc. Tested with TAA, dx12 and highest in 1080p. Custom fancurve. Temps are maxtemps.

Stock 2050/1200mv:
110fps, 185W max, 160W avg, rpm 2950, gputemp 74C, junction 93C
1900MHz/1000mv:
110fps, 149W max, 130W avg, rpm 2700, gputemp 70C, junction 81C.
1800/950mv:
108fps, 133W max, 115W avg, rpm 2300, gputemp 66C, junction 74C.
1750/910mv:
106fps, 134W max, 110W avg, rpm 2300, gputemp 66C, junction 74C.
1700/890mv:
104fps, 126W max, 105W avg, rpm 2200, gputemp 65C, junction 73C.

Conclusion:
Underclock to 1900 and UV to 1000mv gives no performanceloss, but temps are better and slightly less noise.

Underclock to 1800 only gives 3% performanceloss, but reduces powerusage by 10-15% and temps quite a bit.
Underclocking/undervolting further yields 5% lower power pr 2% performance and is not worth it in my opinion.
Seems like 1800/950mv is the sweetspot 8n my card

impressive temp you got there, with this theres no reason to avoid refere blower type anymore, goodjob

 

[Taraquin]

impressive temp you got there, with this theres no reason to avoid refere blower type anymore, goodjob

Thx, but I would say that a stock running blower is not a good card. Tjermals and nouse is terrible. Unless you UV and UC I don't recommend blower to anyone, atleadt not 5700 XT. Vanilla 5700 blower is a better deal with less noise and better thermals.

 

[Deleted member 191106]

It sure got better with the new drivers. Hopefully it will get even better in the future.

 

[Schmuckley]

Amd does not report powerdraw from dram etc so the card even at 1580@835 draws 110-120W avg I guess. Still very good perfprmance pr watt.

You can use TechPowerup's own GPU-z to see what the power draw is under load. Mine is doing about 185w

 

[Taraquin]

You can use TechPowerup's own GPU-z to see what the power draw is under load. Mine is doing about 185w

Actually no, GPU-Z only shows core power draw and not usage by dram etc. Only way to measure 100% is by checking wallpowerdraw, but that shows total system consumption. In general I have heard that you should add minimum 20W to numbers in GPU-Z to get total card consumption

 

[Schmuckley]

I took the stock fans off and am laying a finger-chopper on the sink. This new board BIOS doesn't control the chassis fans right, though. Grr!

 

[idiocracy]

I know this is old, but i thought i'd add my experience in case it could help someone else. So i have a red devil, and i've had major issues doing anything to this card without instability issues. Like i'd run 1750 mhz at 1080mV and it would still crash. So yesterday i started over, i did some research etc. And found that when everything was stable, and i then manually set a fan curve in adrenalin, that would be the cause of my instability. Running stock fan settings i have been able to run superposition for over an hour with 1950mhz(actual clock ~1900mhz) at 1V and memory at 1850mhz.
So if you're having issues, at least with powercolor cards, try default fan settings.

Spoiler: Settings

 

[Midiamp]

So if you're having issues, at least with powercolor cards, try default fan settings.

I tried this on my Sapphire Nitro+ 5700XT, still plenty of crashes. I abandoned the idea of underclocking because the instability is too much for me. However I have to note I run two differing monitor with different refresh rate and pixel density.

 

[h3r3t1k]

Hey guys. Great info here. Registered to post. I have the basic powercolor dual fan non red dragon/devil. 1900 mhz at 1000 mV is stable for me. Thing is during stress testing I see 1630 mhz and power consumption maxes out at 181W. This is why I won't get higher clocks imo. Temps are fine. 80C max and hot spot under 100C. I have high ambient temps. Would you increase power target and check temps again?

 

[Taraquin]

Hey guys. Great info here. Registered to post. I have the basic powercolor dual fan non red dragon/devil. 1900 mhz at 1000 mV is stable for me. Thing is during stress testing I see 1630 mhz and power consumption maxes out at 181W. This is why I won't get higher clocks imo. Temps are fine. 80C max and hot spot under 100C. I have high ambient temps. Would you increase power target and check temps again?

Is it XT or vanilla? Sounds like powerlimit. I would try running fan faster. Consumption increases with higher temps.

 

[h3r3t1k]

Is it XT or vanilla? Sounds like powerlimit. I would try running fan faster. Consumption increases with higher temps.

XT. Why run fans faster?

In furmark the mentioned settings give me 8113 points and maxing out power target (50) sees me going from 1515 mhz to 1755 mhz but increases power draw from. 180W to 239W and 79C vs 71C before.

EDIT: Stress tested 1800/950 stable (occt 15min). Temps are 79 max, 97 hot spot at 26 ambient. Clocks hovered between 1620 and 1645. Power target and fan settings weren't messed with as I found out that messing with fan speeds sees them maxing out way early ignoring my settings and throwing noise reduction out the window. Fans maxed out at 2650 which is okay noise wise considering it's a stress test. I'm happy with this setting. Will compare stock (2074/1200) to this in the FC:ND game benchmark. What can be taken away is that 1800/950 results in the same frequency being held during stress test as 1900/1000. I'm limited by heat and power. More power means more heat. So lower voltage is the way to go.

EDIT2: So stock results in FC:ND benchmark (maxed out, render scale x2): 44/54/70 (min/avg/max fps), 72/88/183 (max temp/max hot spot/Watts). 1800/950: 44/53/68, 68/80/161. Same min fps, 2 more max fps at stock, average 1 fps difference. 4C cooler, 8C at hot spot, 22W less power at max. The winner is clear.

EDIT3: Since VRAM voltage is fixed I set clocks to 1850 MHz which is tested stable in OCCT. Results in the Borderlands 3 Benchmark (all maxed, render scale x2): Stock: 30,44 avg fps, 32,85 frametimes avg, temps 78/94, 185W max. 1800/950/1850: 31,65/31,6 and 76/90, 172W max. Again clear winner is the UV.

 

[Taraquin]

If you run fans faster, card runs cooler and consumption drops due to lower temps which might alleviate power limits

 

[Icon Charlie]

Do we have here on this site on:
1: how to undervolt your card Both 5700 and 5700XT? I placed both as in my case they are acting differently to undervolting.
2. How to use your wattman or MSI AfterBurner correctly and naming all of their functions?
3. Data list on people's results?

It might be helpful in the long run if we don't have one yet.

 

[spuddsy96]

So I had been looking for an underclock/undervolt to use for my PowerColor Red Dragon, wanted to rein the temps in etc.

I tried both 1800mhz at 950mv, works great, had a max temp of 64 with junction of 71. obviously dual fan card so temps are amazing


Opting for 1700 at 900mv temps - 63c and junction at 69c, as this is optimal for what I'm looking for, nice silent build, and as I recently did a full upgrade I've been optimising for silence and airflow

fan curve is 35,35,40,48,51% in AMD software, more aggressive than default, but still quiet as its only 10% increase over default, plus I use headphones so its inaudible for me.
Temps - 30,51,61,81,96c

 

[Taraquin]

Those temps are really low. With my currebt curve GPU-temp rise to 65-75C, hotspot 70-80C and mem 75-80C, fans running at 1200-1600. There is no problem turning down fan a bit and let your temps rise to 70-80. Personally I don't like it when temps rise above mid 80ties since a really warm day or extras stress load will make them pass 90 easily.

 

[spuddsy96]

Those temps are really low. With my currebt curve GPU-temp rise to 65-75C, hotspot 70-80C and mem 75-80C, fans running at 1200-1600. There is no problem turning down fan a bit and let your temps rise to 70-80. Personally I don't like it when temps rise above mid 80ties since a really warm day or extras stress load will make them pass 90 easily.

Just an update on my current settings, I decided to go to 1875 at 990mv, wanted a tad more power back.

GPU temps - 63-69
Junction - 67-73

btw my fan is at a max of 48%, at around 50-60 its around 43% basically it hits around 1700RPM at most which is really quiet.

Also ambient in my room is around 17/18C as we are coming out of summer heat here.

That's one thing I wasn't really liking either when I got my Card, as I came from an GTX 970 which had a max temp of 77 under load an asus strix card, so seeing it hit 78-83 was not sitting well with me.