Question Speculation: RDNA2 + CDNA Architectures thread

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uzzi38

Platinum Member
Oct 16, 2019
2,565
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All die sizes are within 5mm^2. The poster here has been right on some things in the past afaik, and to his credit was the first to saying 505mm^2 for Navi21, which other people have backed up. Even still though, take the following with a pich of salt.

Navi21 - 505mm^2

Navi22 - 340mm^2

Navi23 - 240mm^2

Source is the following post: https://www.ptt.cc/bbs/PC_Shopping/M.1588075782.A.C1E.html
 

Mopetar

Diamond Member
Jan 31, 2011
7,797
5,899
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There's no real split of RAM or VRAM on consoles, they operate on the Heterogeneous model. There are ofc, "CPU" workloads that sits in the shared memory that would remain in the system RAM on PC. Stuff like audio & game logic. But the rest are GPU.

Maybe I hustled worded my post poorly but that's essentially what I meant. A GPU with 16 GB of VRAM has that 16 GB to itself. The consoles have to use that memory for other things. This means that even though the consoles have 16 GB of memory we're not going to see many PC games that require that full amount or hit some kind of wall at that point.
 

moinmoin

Diamond Member
Jun 1, 2017
4,933
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Haven't seen it mentioned before, with MI100 the first CDNA card appears to be launching on November 16 which is sooner than the RDNA2 cards. Will be interesting to hear how much it will deviate from and have similarities to GCN and/or RDNA2.

 

andermans

Member
Sep 11, 2020
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Haven't seen it mentioned before, with MI100 the first CDNA card appears to be launching on November 16 which is sooner than the RDNA2 cards. Will be interesting to hear how much it will deviate from and have similarities to GCN and/or RDNA2.


I believe that is Arcturus though? That should be roughly the same as a Radeon VII (i.e. vega20) + cooperative matrix multiplication for NN (i.e. pretty much tensor cores) but no support for rendering or display.

The lack of rendering is why I believe we will see RDNA 1/2/... cards in the datacenter for visualization and cloud gaming purposes. (i.e. the split really is graphics vs. compute, not consumer vs. prosumer vs. datacenter)
 

Stuka87

Diamond Member
Dec 10, 2010
6,240
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Haven't seen it mentioned before, with MI100 the first CDNA card appears to be launching on November 16 which is sooner than the RDNA2 cards. Will be interesting to hear how much it will deviate from and have similarities to GCN and/or RDNA2.


That November date isn't its for sale date though from what I have seen. Its the announcement date with details and such. Which we already had for RDNA2 cards.
 
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AnandThenMan

Diamond Member
Nov 11, 2004
3,949
504
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When Big Kahuna Navi finally gets released.

cIp1XhG.gif
 

Asterox

Golden Member
May 15, 2012
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kurosaki

Senior member
Feb 7, 2019
258
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Luckily we can buy new pretty cheap gaming consoles. :mask:

Nooo! This is not happening!
 

.vodka

Golden Member
Dec 5, 2014
1,203
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Ajay

Lifer
Jan 8, 2001
15,332
7,792
136
So Navi21 has that much headroom over stock 2.1-2.2GHz? That's awesome. Even when pushed that far out, power doesn't spiral out of control. That's still lower than a stock 3090 IIRC

Assuming that was done on air, I wonder how much further it could go with a full cover block.
Could have just been a suicide run if it was just on air.
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
3,785
136
Seems to be a fake

Why would anyone believe this crap? There's nothing to suggest Navi will do better in crypto mining - in fact it should do the opposite.

The top profitable crypto is still Ethereum. The workload is very stressful to the memory subsystem and Ampere has loads of what Navi doesn't have.

6800XT beating 3090 by 1.5x in crypto mining! Stop being so gullible!