Radeon RX 6000 GPU full specs supposedly leaked, flagship RX 6900 XT features 80 CUs

Written by Neil Soutter on Wed, Oct 21, 2020 6:00 PM

We are literally just one week away from AMD officially announcing the Radeon RX 6000 graphics cards series, and the excitement is brimming. Whilst we already got a sneak peak at some performance numbers at the Ryzen 5000 CPU reveal, specs have been kept hush and left only to rumors. However, thanks to some new drivers supplied to AIB partners, some official specs have supposedly been leaked for the Radeon RX 6000 series.

The full lineup seems to include 5 graphics cards in total, the flagship RX 6900 XT, the RX 6800 XT, an RX 6800, the RX 6700 XT, and an RX 6700. Interestingly the specs seem to be a bit sparse on the RX 6700 XT and RX 6700, but the rest of the lineup is looking pretty good if I say so myself.

Radeon RX 6000 specs and GPU lineup:

Model GPU Compute Units Stream processors Game clock Boost clock Memory Memory bus Memory speed
Radeon RX 6900 XT Navi 21 XTX 80 5120 2040MHz 2330MHz 16GB GDDR6 256-bit 16Gbps
Radeon RX 6800 XT Navi 21 XT 72 4608 2015MHz 2250MHz 16GB GDDR6 256-bit 16Gbps
Radeon RX 6800 Navi 21 XL 64 4096 1815MHz 2105MHz 16GB GDDR6 256-bit 16Gbps
 Radeon RX 6700 XT Navi 22 40 2560 - - 12GB GDDR6 192-bit -
Radeon RX 6700 Navi 22 - - - - - 192-bit -

*Specs listed are entirely speculated and not confirmed, therefore they are subject to change.

As you can see above, the Radeon RX 6900 XT is looking to be the flagship graphics card of the series and is reportedly exclusively sold by AMD themselves. It will feature 80 Computer Units (or 5120 Stream Processors), 16GB of GDDR6 memory, and a game clock speed of 2040MHz and a boost clock of 2330MHz. It will also be using the Navi 21 XTX GPU which we heard about the other day.

As for the Radeon RX 6800 XT, this card will be using the Navi 21 XT GPU which will be a slight cut down version of the Navi 21 XTX GPU. It will feature 72 CUs (4608 Stream Processors) along with 16GB of memory, and a game clock speed of 2015MHz and a boost clock of 2250MHz.

The RX 6800 will be using the Navi 21 XL variant that is an even more cut down version of the Navi 21 XT GPU, but will still feature 64 Compute Units (4096 SPs) and once again 16GB of GDDR6 memory. The clock speeds are 1815MHz for the game clock and 2105MHz for the boost clock.

What’s interesting is that the Radeon RX 6700 series is apparently not planned to be unveiled this month, and will instead be coming in January 2021. Both the RX 6700 Xt and RX 6700 will feature the Navi 22 GPU, with the XT variant including 40 Compute Units (2560 SPs) as well as 12GB of GDDR6 memory.

In terms of the clock speeds however, these are apparently based on the AMD reference cards, so they will likely change for custom 3rd party designs when released.

More information regarding performance and the special cache built into the RX 6900 XT will apparently be revealed later, though before the official announcement from AMD at least. AIBs are also expected to be launching the RX 6000 GPUs next month, but AMD is focusing on their reference designs first (and will reportedly have its own separate review embargo).

What do you think? Are you excited for the Radeon RX 6000 series? Based on these specs, which one are you most excited for? And what are your performance predictions? Let us know!

Based on these specs what are you most excited for?

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07:45 Oct-22-2020

i will gladly switch to all team red, if they have better perf/price than rtx 30

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07:43 Oct-22-2020

Depending on pricing, I think the 6800 is looking really good..... I'm pretty sure it will perform a bit under the 3070, but probably not by much, so if they can get that price to $400 or a bit under, that might end up being a very popular card...... AMD being AMD though, I'd be surprised to see them price it that low.

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21:11 Oct-21-2020

Where is the Navi 21 XE/XLE?

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21:05 Oct-21-2020

Im interested in 256bit memory bus and that "game cache" i hope its performance is not driver, software optimization dependent as it might not deliver consistently good results for all games knowing amd drivers and software optimization speed in general.

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06:33 Oct-22-2020

Nvidia has been relying on software and driver optimization since Maxwell when they put all their eggs in the basket on delta color compression and cut the bus width and it worked.

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12:49 Oct-22-2020

Didnt said anything about nvidia, besides nvidia=/=amd? no?

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12:54 Oct-22-2020

With rdna AMDs delta color compression matched nvidia's.

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14:20 Oct-22-2020

This new amd "game cache" method is completely different from delta color compression so you cant compare them directly like they are equivalent to each other, besides amd has to compensate huge amount of memory bandwidth and if it doesnt work properly you might see very noticeable inconsistent performance between various games. You and me can craft theories all day long but neither of us know what exactly what this method is and how it will perform until independent reviews.

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17:29 Oct-22-2020

I didn't compare them. I said that RDNA(RDNA 1.0) has delta color compression that matches Nvidia's, the extra amount of L3 cache helps even further reduce the need for bandwidth.


And yes we can't calculate DCC for each game, like that'd be a waste of time and we'd have to reverse engineer each game.

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20:34 Oct-21-2020

To be honest, without prices and FPS numbers, those are pretty meaningless, since we can't really extrapolate bang for the buck. Are they going to compete directly as naming suggests, like 6700/6700XT vs RTX3070. In that case it feels like those will be great bang for the buck option, provided they will be close to each other like 5700/5700XT. Though I am bit concerned about memory bus.

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20:36 Oct-21-2020

Though in this case 6800 feels like it could be that pay little more and get quite a bit more. While 6700/6700XT are pay less and get close to performance. Dunno, can't wait for benchmarks though, could be they got some trickery going on with cache.

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20:04 Oct-21-2020

what are the odds of AMD delivering a solid 3080 competitor for a similar price? I'm kinda tired of waiting

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20:14 Oct-21-2020

Well, we'll have to see how the rtx 3000 series do on TSMC's 7nm first, as iirc, Nvidia was moving to TSMC, don't remember if it was confirmed or a rumor though.

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21:02 Oct-21-2020

even if this tsmc thing is true its not coming soon, at least not in upcoming 1-2months

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21:20 Oct-21-2020

There won't be RTX 3000 on TSMC. It'd require complete redesign of the architecture due to different node designs. TSMC is reserved for the next series of Nvidia GPUs.

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22:00 Oct-21-2020

the GA100(Geforce Ampere 100 chip) is already on TSMC, you don't need a complete redesign of the architecture at all. AMD and Nvidia have future designs ready and they just tune them for the process nodes. Like Maxwell was meant to be on 20nm, but 20nm was crap and they tuned it for 28nm in a matter of months.

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05:55 Oct-22-2020

Only few selected Ampere designs are built with TSMC, and those are mostly big professional GPUs. Consumer grade series is all on Samsung, and due to different fabrication process between Samsungs 8nm and TSMCs 7nm, Ampere would require architecture retooling which would be pretty expensive to do. It isn't the same situation as 20 to 28.

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06:29 Oct-22-2020

Yeah, as I said it'll have to be tuned and if anything tuned up, but not a whole redesign

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07:29 Oct-22-2020

They might have canceled them, I saw a thumbnail of a video from a channel called tech deals, but can't watch it now

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19:59 Oct-21-2020

Hopefully the 6700 will be priced at 300 to 350.

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20:16 Oct-21-2020

the 6700xt should cost 350$ MSRP MAX with those 12GB of GDDR6 VRAM.
The 6700 non-xt if it has 8GB of VRAM and 36CUs should cost 300$ MAX.

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23:01 Oct-21-2020

Haha, knowing AMD they'll charge the 6700 xt for $400


god this is sad...

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06:31 Oct-22-2020

Yup, give them an inch and they take a mile.
Their r&d and overall yearly expenses are still lower than in the 2000s and yet their profit margins are much higher...

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07:50 Oct-22-2020

hmmmm my opinion is $300 max for the 6700XT and $250 max for the 6700....... These cards are way too far down in the product stack to demand more than that..... I'm sure they will cost more than that, don't get me wrong..... but I personally wouldn't pay more, these are lower mid range cards, they're not worth more.

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09:40 Oct-22-2020

Well the 12gb of gddr6 is around 120$ alone, the pcb should be another 50-70$ and the chip itself with the r&d spread and manufacturing
taken into a count should cost amd close to another 90$
So it can't be less than 240$ at 0% profit margin, and amd are gunning for 45% profit margin.


gddr6 price info is from 20

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09:49 Oct-22-2020

From 2019

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09:52 Oct-22-2020

7nm EUV is said to be cheaper than 7nm so the chip might be cheaper if it's the same die size as the rx 5700xt

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09:57 Oct-22-2020

For one thing, I don't think pairing a lower mid range GPU with 12GB vram makes any sense at all..... this is at best going to be a 1440P card.... Where it will perform relative to the product stack is what I'm basing on what I feel it would be worth to me, and no matter what cost went into making it, there's no way in the world I would really even pay $300 for a lower mid range card, to me $300 is what an upper mid range card should cost.

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12:50 Oct-22-2020

Agreed, there is not enough bandwidth, 6gb ram for the 192 bit bus navi22 makes sense. Then it can for sure cost 250-300$

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12:51 Oct-22-2020

12gb if it's gddr6x

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13:45 Oct-22-2020

Well the thing is that as new process nodes come out, the reticle limit(maximum possible, practical die size) increases.
Back in the day of the gtx 500 series a gtx 560 at 332mm^2 was a mid range GPU out of a 620-630-ish mm^2 reticle limit at 40nm

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13:46 Oct-22-2020

nowadays a gtx 1080Ti at 471mm^2 is mid-range at 16/12/20nm out of a 815mm^2 reticle limit.


Nowadays there are more tiers of GPUs, since the die sizes are much bigger. Mid-range is the gpu that is around half the reticle limit of the process node.

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13:48 Oct-22-2020

Now GDDR5 from 2013-2018 costed 5.5$ per GB for the fastest GDDR5 ram, now GDDR6, well as of 2019, GDDR6 costs 11$ per GB, whereas GDDR5 costs 6.5$ per GB, so it's a huge cost. And back in the day of 2-4GB Vram GPUs the VRAM was less on top of being cheaper.

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13:49 Oct-22-2020

Now 12GB of GDDR6 cost at least 120$ alone. 2GB of GDDR5 back in the day was 10-12$. Even if we take the gtx 780 with 3GB of ram or r9 290 with 4gb ram that's 15-20$.

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19:03 Oct-21-2020

Navi 22 I've got my eyes on you.

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18:08 Oct-21-2020

Finally, AMD really understands my non-sensical needs for VRam, since my Skyrim eats literally all of my 8Gb on 1080p, while in other games like RE2 i get by quite easily with around 4gb of usage. Guess i might not have to shell out too much to keep my VRam addiction going.
P.S. This is my very specific use case, i also do video editing.

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