The Radeon RX 6900/6950 XT Owners Thread.

Cryfreeman · 22 Nov 2021 at 06:03

Seems bit of a lottery these 6900xt’s . Hopefully find out soon once the unicorn Ddr5 appears somewhere

LtMatt · 22 Nov 2021 at 06:18

Cryfreeman said:
Seems bit of a lottery these 6900xt’s . Hopefully find out soon once the unicorn Ddr5 appears somewhere

It's really only the MSI one that has some issues with the Junction temperatures. You can expect higher junction temperatures once you go past 325W+ on air though.

It's a non issue with the XTX models, but the XTXH models have higher power limits and voltage available for overclocking, so for best results you need to put those under water - be it AIO or waterblock.

If I was going for an XTXH 6900 XT, I'd go for the Red Devil Ultimate. It looks great and it has a 110c max Junction temp.

XTXH models have a boost clock of 2425Mhz or higher, some of the Liquid cooled models have a 2525Mhz core clock. There is one XTX model with 2425Mhz boost clocks, that's the Powercolor Liquid Devil but it is not a XTXH model.

Cryfreeman · 22 Nov 2021 at 08:09

LtMatt said:
It's really only the MSI one that has some issues with the Junction temperatures. You can expect higher junction temperatures once you go past 325W+ on air though.

It's a non issue with the XTX models, but the XTXH models have higher power limits and voltage available for overclocking, so for best results you need to put those under water - be it AIO or waterblock.

If I was going for an XTXH 6900 XT, I'd go for the Red Devil Ultimate. It looks great and it has a 110c max Junction temp.

Doubt I’ll be overclocking much these days, so hopefully totally fine at stock levels! Plays up I got a year to return I’m guessing.

sparkymark75 · 22 Nov 2021 at 08:15

Cryfreeman said:
Doubt I’ll be overclocking much these days, so hopefully totally fine at stock levels! Plays up I got a year to return I’m guessing.

Same. I’m undervolting mine. I bought it because it was a decent price, didn’t even realise it was a better binned chip (or there were hotspot temp issues).

LtMatt · 22 Nov 2021 at 08:20

Cryfreeman said:
Doubt I’ll be overclocking much these days, so hopefully totally fine at stock levels! Plays up I got a year to return I’m guessing.

sparkymark75 said:
Same. I’m undervolting mine. I bought it because it was a decent price, didn’t even realise it was a better binned chip (or there were hotspot temp issues).

Yes, price is good for an XTXH model. If you run stock and undervolt you should be fine btw, just keep the power limit at or below 300W.

I bet you would also get better results with a re-paste and using Liquid Metal. I was tempted to get one myself and try it given the price, but that video put me off.

HWINFO64 will measure the power limit you can set (GPU PPT Limit) using the Power Limit slider in Radeon Software, using that you should be able to set it to around 300W by adjusting the power limit up or down, depending on what the stock power limit is for the MSI Bios.

The screenshot below is taken from my 6800 XT Midnight Black Edition MBA card. Stock power limit was 255W, power limit set to -6%. +15% power limit gives a PPT Limit of 293W.

Cryfreeman · 22 Nov 2021 at 08:28

LtMatt said:
Yes, price is good for an XTXH model. If you run stock and undervolt you should be fine btw, just keep the power limit at or below 300W.

I bet you would also get better results with a re-paste and using Liquid Metal. I was tempted to get one myself and try it given the price, but that video put me off.

HWINFO64 will measure the power limit you can set (GPU PPT Limit) using the Power Limit slider in Radeon Software, using that you should be able to set it to around 300W by adjusting the power limit up or down, depending on what the stock power limit is for the MSI Bios.

The screenshot below is taken from my 6800 XT Midnight Black Edition MBA card. Stock power limit was 255W, power limit set to -6%. +15% power limit gives a PPT Limit of 293W.

Ok thanks for that, been a while since I’ve done any OC related stuff(like 8 years I think)so well out of the loop!

Cryfreeman · 22 Nov 2021 at 08:31

Just checked, last time I built a pc was when the GTX480 was decent :eek:

koeiwong · 22 Nov 2021 at 09:41

I am lazy and just use the Radeon auto turning to undervolt to 1175mv, the fans curve with these auto settings seems to be more aggressive (around +10% rpm and no zero rpm) than the default settings.

Cryfreeman · 22 Nov 2021 at 12:25

LtMatt said:
Yes, price is good for an XTXH model. If you run stock and undervolt you should be fine btw, just keep the power limit at or below 300W.

I bet you would also get better results with a re-paste and using Liquid Metal. I was tempted to get one myself and try it given the price, but that video put me off.

HWINFO64 will measure the power limit you can set (GPU PPT Limit) using the Power Limit slider in Radeon Software, using that you should be able to set it to around 300W by adjusting the power limit up or down, depending on what the stock power limit is for the MSI Bios.

The screenshot below is taken from my 6800 XT Midnight Black Edition MBA card. Stock power limit was 255W, power limit set to -6%. +15% power limit gives a PPT Limit of 293W.

Going for the normal Red Devil to replace the MSI. Can’t sit here thinking it’s a dud while I wait for the Ddr5 to turn up

LtMatt · 22 Nov 2021 at 12:27

Cryfreeman said:
Going for the normal Red Devil to replace the MSI. Can’t sit here thinking it’s a dud while I wait for the Ddr5 to turn up

Decent choice.

sparkymark75 · 22 Nov 2021 at 12:47

Cryfreeman said:
Going for the normal Red Devil to replace the MSI. Can’t sit here thinking it’s a dud while I wait for the Ddr5 to turn up

Nooooo! You’ve left me all alone in Gaming Trio Z land!

Cryfreeman · 22 Nov 2021 at 12:55

sparkymark75 said:
Nooooo! You’ve left me all alone in Gaming Trio Z land!

Think of yourself as a trend setter, laying the tracks so to speak

Metalface Mark · 22 Nov 2021 at 13:14

I was getting quite frustrated with my 6900XT with stutters (trying to play forgotten city), i was cursing it, installed it on my other pc with a 3090 and the same thing happening, pretty shoddy these game developers putting out stuff that makes these high end cards look rotten.

sparkymark75 · 22 Nov 2021 at 13:27

Cryfreeman said:
Think of yourself as a trend setter, laying the tracks so to speak

I'm not sure being the only one left with a lemon would be classed as a "trend setter" tbh

Although to be fair, my temps don't seem too bad. I mean I could return it and get say the Sapphire Nitro+ but whats to say it doesn't run hot?!

uksoldierboy · 22 Nov 2021 at 13:55

Guys I know this isn't really the right place for questions but thought I'd ask here amongst owners rather than make a thread.
I've been out of the PC scene for a while, currently using a 8700k and a 2070super, looking at getting back into it all with a high end build, eying up these two:
https://www.overclockers.co.uk/sapp...ddr6-pci-express-graphics-card-gx-39m-sp.html

https://www.overclockers.co.uk/asus...ddr6-pci-express-graphics-card-gx-46b-as.html

Any first hand experience of using either? Are the AIO options worth it?
It's been hard work deciding which route to go down, either 6900xt or 6800xt, I'm still not 100% yet but leaning more towards the 6900xt.
Any experiences and thoughts would be most welcome.
Cheers

varkanoid · 22 Nov 2021 at 14:07

One for LTMatt.

LtMatt · 22 Nov 2021 at 14:33

uksoldierboy said:
Guys I know this isn't really the right place for questions but thought I'd ask here amongst owners rather than make a thread.
I've been out of the PC scene for a while, currently using a 8700k and a 2070super, looking at getting back into it all with a high end build, eying up these two:
https://www.overclockers.co.uk/sapp...ddr6-pci-express-graphics-card-gx-39m-sp.html

https://www.overclockers.co.uk/asus...ddr6-pci-express-graphics-card-gx-46b-as.html

Any first hand experience of using either? Are the AIO options worth it?
It's been hard work deciding which route to go down, either 6900xt or 6800xt, I'm still not 100% yet but leaning more towards the 6900xt.
Any experiences and thoughts would be most welcome.
Cheers

The Sapphire is probably the best overall 6900 XTXH out there all things considered. The Strix is probably second. Depends on whether your case can fit the rads. That is assuming you will use the provided coolers.

If you intend to put a block on the GPU then you can widen your search a little and consider some of the other options, such as the Red Devil Ultimate or the Asrock Challenger/Gigabyte Xtreme/XFX EKWB/MSI Gaming Z Trio.

Make sure you pair a 6900 XT with a Alder Lake or Ryzen 5000 series (5600X or better) CPU please. Anything less will hold you back performance wise.

sparkymark75 · 22 Nov 2021 at 14:55

LtMatt said:
The Sapphire is probably the best overall 6900 XTXH out there all things considered. The Strix is probably second. Depends on whether your case can fit the rads. That is assuming you will use the provided coolers.

If you intend to put a block on the GPU then you can widen your search a little and consider some of the other options, such as the Red Devil Ultimate or the Asrock Challenger/Gigabyte Xtreme/XFX EKWB/MSI Gaming Z Trio.

Make sure you pair a 6900 XT with a Alder Lake or Ryzen 5000 series (5800X or better) CPU please. Anything less will hold you back performance wise.

I'm running a 5600X as that was sold as all you need for gaming!

jwilliamson47 · 22 Nov 2021 at 14:59

I'm running an 8700K, does that need upgrading?

melmac · 22 Nov 2021 at 15:05

sparkymark75 said:
I'm running a 5600X as that was sold as all you need for gaming!

It is, I don't know what Matt is talking about.

Here read this:

Ryzen 5 5600X vs. Ryzen 7 5800X vs. Ryzen 9 5900X vs. 5950X: GPU Scaling Benchmark | TechSpot