6800XT/6900XT - AMD Only, Tier 1 Card Chat - PCB/Clocks/Powerlimit/Benches

Besty · 18 Feb 2021 at 19:29

KitGuru:

https://www.youtube.com/watch?v=V_i8DM8FJGc&ab_channel=KitGuruTech

His sample is pulling hard - 442 watts and up to 450w under manual OC lawl:

Gerard · 18 Feb 2021 at 19:34

So its meant to cost £1300, lawl. Let the gouging commence for the umpteetnth time in the last few years.

Grim5 · 18 Feb 2021 at 20:26

Besty said:
Surprisingly, the 6900XT Toxic review has landed. Hide your wallets.

https://www.tweaktown.com/reviews/9732/sapphire-toxic-radeon-rx-6900-xt-limited-edition/index.html

What a disappointment, doesnt perform really any different to other 6900xt despite drawing 450w and that price, you could almost buy 2 cheap 6900xt cards for the price

Grim5 · 18 Feb 2021 at 20:34

HRL said:
Actually looking at the review and I’m surprised it doesn’t boost any higher than some other people’s experiences with their 6900’s on air.

Other than the temps being lower of course, which is always a bonus.

Worth £2K? Probably not unless it beat the opposition at everything and not just ACV.

It's because the 6900xt isn't really power or temp limited, amd was kind of locking power down anyway so we didn't know that it wasn't power until now - the RDNA2 silicon simply becomes unstable over 2700mhz and some cards became unstable slightly over or under 2.7ghz but that is where the silicon reaches its limit and something in the gpu gives in

who knows what the cause is, is it AMD's architecture or is this simply the absolute balls to the walls limit of TSMC's 7nm? who knows

henson0115 · 18 Feb 2021 at 20:39

Grim5 said:
It's because the 6900xt isn't really power or temp limited, amd was kind of locking power down anyway so we didn't know that it wasn't power until now - the RDNA2 silicon simply becomes unstable over 2700mhz and some cards became unstable slightly over or under 2.7ghz but that is where the silicon reaches its limit and something in the gpu gives in

What are you basing this of? Just curious.

Grim5 · 18 Feb 2021 at 20:47

henson0115 said:
What are you basing this of? Just curious.

Cause air cooled cards with 320w power draw are crashing at 2.7ghz and now we have toxxic water cooled cards at 450w power draw still crashing at 2.7ghz. Also you can look at the 3D Mark databases where people that have down soldered mods and used LN2 still can't do much with the clocks - from what I can see on the hall of fame, LN2 + Power mod = still crash at 2.7ghz

henson0115 · 18 Feb 2021 at 20:50

Grim5 said:
Cause air cooled cards with 320w power draw are crashing at 2.7ghz and now we have toxxic water cooled cards at 450w power draw still crashing at 2.7ghz. Also you can look at the 3D Mark databases where people that have down soldered mods and used LN2 still can't do much with the clocks

not seen any reports of the toxic model crashing, do you have any links of reports? Curious to read them?

Grim5 · 18 Feb 2021 at 20:51

henson0115 said:
not seen any reports of the toxic model crashing, do you have any links of reports? Curious to read them?

The reviews posted above? they all say the card becomes unstable and crashes at 2.7ghz, the reviews start on page 2. And just so you're aware - we're talking about overclocking, the toxxic doesn't run at 2.7ghz out of the box, its around 2.4ghz out of the box

henson0115 · 18 Feb 2021 at 20:59

Grim5 said:
The reviews posted above? they all say the card becomes unstable and crashes at 2.7ghz, the reviews start on page 2. And just so you're aware - we're talking about overclocking, the toxxic doesn't run at 2.7ghz out of the box, its around 2.4ghz out of the box

He said it was rock solid at 2696 and became unstable past 2.7, he also said the Trix boost had it at 2.6 with 1 button click Running at like 323watts. He also said it's the best 6900 period. Seems different to what you said.

Igor's 450w were transient peaks, average load under torture test was 320 odd watts.

Seems your statement is a bit skewed?

HRL · 18 Feb 2021 at 21:36

henson0115 said:
Seems your statement is a bit skewed?

Seems like you’re just looking for an argument. He’s going by what was said in the review in this very thread!

It is the best 6900XT of that I’ve no doubt. Should be at that price.

LtMatt · 18 Feb 2021 at 21:40

The card is limited to 320W. If you want to see it truly stretch it’s legs from all the other AIB air cooled 320W 6900 XTs you’ll need MPT. Come on guys it’s not rocket science.

Besty · 18 Feb 2021 at 22:05

Grim5 said:
Cause air cooled cards with 320w power draw are crashing at 2.7ghz and now we have toxxic water cooled cards at 450w power draw still crashing at 2.7ghz. Also you can look at the 3D Mark databases where people that have down soldered mods and used LN2 still can't do much with the clocks - from what I can see on the hall of fame, LN2 + Power mod = still crash at 2.7ghz

It’s a fair point.

Debaeur did prove that the voltage scales with powerlimit, it could just be that 2700 is your lot on this silicon stepping or, something else is at play.

henson0115 · 19 Feb 2021 at 11:05

HRL said:
Seems like you’re just looking for an argument. He’s going by what was said in the review in this very thread!

It is the best 6900XT of that I’ve no doubt. Should be at that price.

wasnt actually was just trying to correct some of the wrong figures which then get passed around as facts, when they arnt even correct

henson0115 · 19 Feb 2021 at 11:07

LtMatt said:
The card is limited to 320W. If you want to see it truly stretch it’s legs from all the other AIB air cooled 320W 6900 XTs you’ll need MPT. Come on guys it’s not rocket science.

nothing like stating the obvious

it cant be power limited surely must be something else at play surely.... hahah sarcasm just in case it doesn't come through obviously not aimed at you

Besty · 20 Feb 2021 at 21:30

Looks like the official Liquid devil announcement is about to happen. The pictures are on videocardz.

Dontrocktheboat · 20 Feb 2021 at 23:55

Besty said:
KitGuru:

https://www.youtube.com/watch?v=V_i8DM8FJGc&ab_channel=KitGuruTech

His sample is pulling hard - 442 watts and up to 450w under manual OC lawl:

will probably cost close to 2k when it lands, lol in OCUK. 18:12hrs.

now thats definitely ...... TOXIC>

Illuminist · 21 Feb 2021 at 00:00

Besty said:
Looks like the official Liquid devil announcement is about to happen. The pictures are on videocardz.

Want it so much nooooooo

Grim5 · 21 Feb 2021 at 00:08

Besty · 21 Feb 2021 at 08:55

@Grim5

It’s a funny video but if he had checked uncle bestys thread on overclockers he would know the Sapphire Atomic is coming and to:

KALM DE FOLK DOWNE, LEWK, JOST KALM DE FOLK DOWNE, DE ATOMIK WEWNT DAV DE FOLK-IN AY-YAI-YOWE BULTED ONTOW AIT, JUST BAY FOLK-IN PAY-TIENT.......

nukem2011 · 21 Feb 2021 at 11:18

I love the Rx 6800xt hope they get software sorted soon for fan control