Question Speculation: RDNA2 + CDNA Architectures thread

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uzzi38

Platinum Member
Oct 16, 2019
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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
 

GodisanAtheist

Diamond Member
Nov 16, 2006
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I think it's more related to the 6 nm refresh, which is looking more likely they are doing a full refresh. Mining specific SKUs wouldn't surprise me though.

-Indeed, moving to 6nm would allow AMD to produce more dies per wafer and they would not have to compete with 5nm supply with their CPUs and potentially console SOCs.

Given AMD (and NV) still have not even released their full current gen line-up, it doesn't look like anyone is in a big hurry to move on to next gen archs at the moment for any number of different reasons.
 

jpiniero

Lifer
Oct 1, 2010
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-Indeed, moving to 6nm would allow AMD to produce more dies per wafer and they would not have to compete with 5nm supply with their CPUs and potentially console SOCs.

Given AMD (and NV) still have not even released their full current gen line-up, it doesn't look like anyone is in a big hurry to move on to next gen archs at the moment for any number of different reasons.

I would be surprised for AMD to make a further lower tier card for desktop. I think this is it, and what the 6 nm would be (which would make sense to me) is largely the same specs with some clock/memory/price (heh) changes.
 

Mopetar

Diamond Member
Jan 31, 2011
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There is a Navi 24 (16CU, 64-bits GDDR6,16MB IC), probably called RX6300 incoming.

Yeah, but is it going to cost less than $280?

Part of the problem is that even if it can't mine, the market is so distorted that this will wind up getting scalped as well.
 

LightningZ71

Platinum Member
Mar 10, 2017
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They will as long as people still buy them...

A 6nm refresh of the current cards to replace the 700/600/500 level SKUs seems like a no-brainer. ITs already rumored that the 6800 chip is being bumped down to the 700, and the rest down as well. Might as well combine the two.
 

eek2121

Diamond Member
Aug 2, 2005
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Yeah, but is it going to cost less than $280?

Part of the problem is that even if it can't mine, the market is so distorted that this will wind up getting scalped as well.

Do chickens have wings? NOTE that I can get a 6500xt for cheaper than $280 right now. The cheapest public price that I've found is $260. The cheapest bulk (non-reseller) price is $189.96.
 
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maddie

Diamond Member
Jul 18, 2010
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Do chickens have wings? NOTE that I can get a 6500xt for cheaper than $280 right now. The cheapest public price that I've found is $260. The cheapest bulk (non-reseller) price is $189.96.
Curious. What & where is the min order for bulk and why (non-reseller) description? Is reseller even cheaper?
 

DisEnchantment

Golden Member
Mar 3, 2017
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DisEnchantment

Golden Member
Mar 3, 2017
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Seems both are APUs, SMU version 13.0.5 and 13.0.8. One of them is behaving like YC.
They have new VCN version also, 3.1.2

One funny bit is that one of them is LPDDR5+DDR5 and the other is LPDDR5+DDR4 ! o_O
 
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Kaluan

Senior member
Jan 4, 2022
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Some strange but maybe good performance uplift results on RDNA2 cards with the newest 23.2.1 driver in ray-tracing synthetics (and allegedly DOOM Eternal w/ RT on too), 3DMark RT Feature Test score (framerate) gone up by up to 40%, 6900XT getting close to 3080 in DXR pure RT:



Requires further investigation IMO
The only pure RT related driver performance boost claim AMD made is for Quake II RTX
So there might be some truth to it.
Also, unsure if any of this applies to RDNA3

Edit: What both of those games (Quake and DOOM) have in common is that they're running of Vulkan API. But then again, 3DMark's DXR test obviously doesn't. Really strange.

Edit2: Just checked and except for Borderlands 3 (and Hogwarts Legacy?), all performance improvement claims are made for games with various ray-tracing settings on (& at 4K, so unlikely to be a driver overhead thing). Which makes me lean towards this driver being legit about a RT optimization overhaul.

Big if true. RDNA2 FineWine(tm) still going it seems.
But it also ticks me off that they're silent on improvements for RDNA3.
 
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Vikv1918

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Mar 12, 2025
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AMD confirms focus shifts to RDNA3 and RDNA4, RX 6000 and RX 5000 lose day 1 game optimizations​



“RDNA 1 and RDNA 2 graphics cards will continue to receive driver updates for critical security fixes and bug corrections. To focus on optimizing and delivering new and improved technologies for the latest GPUs, AMD Software Adrenalin Edition 25.10.2 places Radeon RX 5000 and RX 6000 series graphics cards (RDNA 1 and RDNA 2) into maintenance mode. Future driver updates with specific game optimizations will focus on RDNA 3 and RDNA 4 GPUs.”
— AMD to PC Games Hardware (translation)
RDNA2 is 5 years old. This is understandable, its like AMD putting R9 300 series into maintenance mode when RDNA2 released. But the slow pace of improvement in price/perf has made what would traditionally be "old" GPUs to still be modern and relevant. So this news would definitely hurt, especially since quite a lot of people bought RDNA2.
 

GodisanAtheist

Diamond Member
Nov 16, 2006
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Is AMD obligated to put that press release out there? Not a whole lot of optimization to do on a 5 year old arch I agree (even as the owner of one) but no one is going to question driver notes only including fixes for RDNA 3 & 4 going forward while quietly excluding RDNA1 & 2.

Feels like a case of being too transparent for their own good. All this does is reinforce the "AMD cards are cheap for a reason" narrative.

Nvidia still has the 9xx series as supported cards, even through they don't get any actual bug fixes etc and don't generate a fraction of the stink even through in practical terms there is little difference in terms of how much "support" legacy cards are getting.