How to UNDERVOLT AMD RX 6000 Series GPUs

Today's video we look at how to undervolt your AMD RX 6700 XT, 6800 XT, 6800, 6900 XT and 6600 XT with some simple settings and easy way to test it!

Chapters
00:00 How to Use adrenaline Software and going through the settings needed to be used.
05:05 Basic Undervolt for RX 6700 XT. The Settings you need to know with easy copy paste and settings.
10:05 Testing Settings
13:19 Saving the Settings, clocking GDDR6 memory. and final trial and error test.
15:44 Conclusion, Things to keep in mind and other hints. FPS Comparison.
and Question of the Day.
18:01 Question of the Day, why not undervolt with PBO?

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#Undervolt #Overclocking #Howto

[techyescity]

I will work on getting the NVidia GPU and Intel CPU tutorials done!

[sublimecraig]

Little tip for the Radeon Overlay, hit Ctrl+Shift+O to bring up the Overlay anytime without having to open Control Center.

[matthewbusse]

Brian you got me into undervolting a few years ago and it's still one of my favorite things to do. I've managed to undervolt and slightly overclock several nvidia and amd cards. Better performance, less power usage and less fan noise, win win win

[ClaudioBernasconi]

You literally saved me from a severe mental breakdown. My computer turned off randomly during games but never during hard work such as video rendering. I don't know why. I learned about using the AMD software (including how to measure metrics). I followed your tutorial and undervolved my RX 6600 XT to 2402 Mhz @ 1100 mV, as suggested in the video. I got down to 85-90 degrees from 110. I also got down to 95W from 130W. I increased VRAM Speed by 3%. Result: Less power consumption, less heat, more stable system, and most importantly, Not even less FPS. Educating myself on this topic was a major win. Great video, too!

[garbuckle]

First time I've tried undervolting. Thanks for the video. Got this for my 6600XT, on first try and that's good enough for me, so won't try for more:
135W -> 100W
2540mhz -> 2350 mhz
67C -> 62C
2000mhz VRAM -> 2200mhz
Heaven went from 1566 pts / 62.2 fps (4k) -> 1547 pts / 61.4 fps
Save 35w for 0.8 fps? Deal!

[craftingmat]

Undervolting is not new to me. Funny thing is I did simply not do it yet for my RX6800XT yet.
Adrenalin really does this easy as cake.
Very good content, very appreciated. L-I-K-E!

[havi]

I undervolteted my rx 6600xt to 1045mv 2500-2650mhz to keep stock clocks and memory to 2300mhz. 12% lower power consumption and 8% better perfomance

[andriusmosta]

Thank you so much for the video. Managed to tune my XTX 6600XT to similar settings to yours ( 2400Mhz and 1090Mhz and Vram 2100) with 10° lower temperatures and power usage dropped 26% on average ( 93W vs 126W on average) with performance loss only 2.2% ( same benchmark as yours with the same settings FPS 139.6 (default) vs 136.5 ( tuned).

[JosephC]

Thank you for this video. This is my first time undervolting and I just got a used rx6700xt Hellhound which is very close to your card so this video was just perfect. Very clear and informational.

[doaks]

Thanks for this concise summary. Helped me undervolt my 6650XT for the first time, and I'm a bit shocked how much power efficiency the stock settings left on the table. I get there is always a push for better raw performance, but over 60% performance per watt increase is insanity.

[Gg_system]

This is great timing, I get my 6900 xt delivered today

[nishaybennie]

Thanks for the tutorial, got my 6600 stable at 2404mhz at 1080mv, ran heaven benchmark for 20mins, no crashes, played couple games, no crashes, temps dropped by about 20 degrees

[ryandietz]

If you want to use fast timings keep your vram speed under 2120

[MikMoen]

Your guide was a massive help! I have a 6600XT and after a game session with a monitoring program running i saw the Hotspot temp reached a peak of 105c, which every I looked online said is not a good time. Found you, used your numbers of 1100 at 2400mhz, ran the game again. The max Hotspot temp dropped 30 degrees with no framerate loss. I should've done this a long time ago!

[mojoneko]

Thanks for this. I went with your recommended settings on my XFX 6600XT. It made a huge difference. My power consumption went from 145 watts to 105 and my GPU Cur and Junc temps dropped 20 C in Heaven benchmark. I didn't notice a big impact on FPS. I think I will keep these settings for now. I found out the Radeon software had reset to the default "quiet" gpu fan mode so changing that to more aggressive helped also. I think my gpu will last a lot longer now. 🙂

[garydurn]

Thanks so much - this walkthrough is incredibly helpful for the community. Imagine - if 10, 000 people applied your technique the yearly energy savings would be circa 0.5 mega watt hour 👍👍

[PC_Gaming_Tech]

I noticed that if you leave the voltage control to the max and only adjust the frequency, the card will only pull the voltages it needs for that frequency. From there you can get a good base on how to adjust voltage based on the target frequency you want or even leave the voltage always to the max and just set the frequency.

[Frday-RT]

Hey Brian, this is great content. I would really like a part 2 where you show power consumption before and after on the cards between the RX 6600 and the RX 6750. Others might appreciate the higher end cards added to that. I just did a 5600x build and I'm currently using an RX 570 recycled from the previous build. So I've been debating between the 6600 cards.

[aggregatecrab]

17:58 go into bios turn on curve optimizer, select negative, select somewhere between 25-30 and Bob's your Uncle.

What this does is change the target power for each clock step on the CPU. Which also allows for the CPU to boost higher since it has power headroom. For instance I have it set to negative 30 on my water-cooled 5900x and I see boosts to 4.95-5 GHz. When running CPU heavy tasks I see all cores sit around 4.45 GHz. This is not a true undervolt, but it will allow your CPU to down-clock unlike an all core setting. I think it balances out in the end. As for latency, like tech said it's a user mileage situation.

[prawler]

I knew about undervolting, and I've done it with my last Nvidia cards. a 1080Ti and a 2080 Super, both run much more stable, cooler and more efficient by doing this. Now i'm sitting with a 6900xt saphire toxic watercoold edition (bought 2nd hand) and it runs pretty hot in my opinion. 290W and 87C in the junction temp. But it's watercooled, and I guess it's top quality components. But it's loud and it makes alot of heat. It gest noticed if you play something GPU consuming. I run it with Chill on (60min and 101Max) and that makes it pretty decent most of the time, until it actually needs to use all the power it can to reach 101 FPS, which in that case... it gets warm and loud. As I said I knew about undervolting but.... I thought I did not have to. I tried it... From 290W to 190W... Doing just as you said, AND the performance reduction is from 8360 -> 8145!!! I thought it would be much more, hence why i did not undervolt before! So, about 3.5% FPS reducation and 35% power reduction!!! Yes please! Now I will enjoy my card to the full! Thank you mate for the very efficient and warming guide :)