AMD Radeon RX 6900 XT = capable of going for a 3 GHz OC?

by Hilbert Hagedoorn on: 11/30/2020 09:03 AM | source: Patrick Schur (Twitter) | 24 comment(s)

It's a bit of a gable, overclocking. Sometimes you have average results, other times you're in luck. The ASUS 6800 XT LC review for example shows that we can hit 2700 MHz on that GPU clock. But the bar is set even higher for the 6900 XT.

It seems that the 6800 XT has a hard target cap at 2800 MHz, but the 6900 XT can be clock (and I am not stating stable here) towards 3 GHz.. perhaps when using sub-zero cooling one can achieve such numbers.

Patrick Schur on Twitter reports all this. Schur states the RX 6900 XT has a raised engine clocked limit of 3.00 GHz. So that's a 200 MHz increase. Combine that with 512 extra shader units, and we're sure Fire Strike records will be shattered. Keep in mind, you'll achieve such values only in highly overclocked and cooled conditions, if at all.

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barbacot
Senior Member

Posts: 611
Joined: 2007-09-24

#5860379 Posted on: 11/30/2020 09:31 AM

bool subzerocooling;
bool Whocares?=false;

if (subzerocooling)
{
Whocares?=true;
}

fantaskarsef
Senior Member

Posts: 12989
Joined: 2014-07-21

#5860487 Posted on: 11/30/2020 03:19 PM

While less sophisticated than @barbacot in his answer, I see little practical value to this. But still good to know that with reference cards you already have a BIOS that seems to give you some (auto?)OC headroom under water.

Agonist
Senior Member

Posts: 3676
Joined: 2008-10-13

#5860634 Posted on: 12/01/2020 12:16 AM

XFX new custom air cooled 6800XT did 2.7ghz boost so this isnt prolly some extreme situation actually.

isidore
Senior Member

Posts: 6276
Joined: 2006-02-01

#5860659 Posted on: 12/01/2020 01:56 AM

XFX new custom air cooled 6800XT did 2.7ghz boost so this isnt prolly some extreme situation actually.

Yeah i saw that..that's freacking impressive honestly..what i'm seeing is much better hardware from the AIB's then AMD itself. Cooler and capable of hitting higher frequencies. I wonder if there will be any 6900XT capable of 2.8 on air.

Kaerar
Senior Member

Posts: 366
Joined: 2003-10-26

#5860726 Posted on: 12/01/2020 09:51 AM

Yeah saw the Red Devil hitting 2.7GHz without changing to water cooling. So it's not too extreme to believe 3GHz on Water could be a reasonable proposition.

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